ALEKS guide
ALEKS trigonometry help:
step by step
Unit circle values, trig equations, identities and triangles — the topics that stop students in ALEKS, and how to work through them yourself.
- Why correct-looking answers get marked wrong
- Every core trig topic, with a problem to try
- Practice checked line by line
Stuck on an ALEKS trig problem?
Type it, paste it, or snap a photo of your screen. igni walks you through it one hint at a time — you still do the math.
Type a problem or add a photo first.
- Free to start
- No card needed
- Never just the answer
Why it is hard
Why ALEKS trigonometry feels so hard
Trig is where students who were fine in algebra start losing points. Three reasons come up again and again.
Exact values, not decimals. ALEKS usually wants √3/2 or 5π/6, not 0.866. If you are reaching for a calculator, the unit circle is the skill actually being tested.
Every solution, inside the right interval. A trig equation normally has more than one answer. Miss one, or give one outside the interval the question asks for, and the whole answer is marked wrong.
One sign, deep in an identity. A single slip breaks everything after it, and you only find out at the end.
Where igni helps. It checks each line as you write it, so a sign error or a missing solution is caught at the step where it happened rather than five lines later.
What it asks
ALEKS trigonometry topics, step by step
These come up in ALEKS Trigonometry and PreCalculus, and in the “with Trigonometry” versions of Algebra 2 and College Algebra. Pick the one that is stopping you and work a typical problem.
-
Right-triangle trigonometry
Using SOH-CAH-TOA to find a missing side or angle, including in word problems.
Angle C is 90°, angle A is 35°, hypotenuse AB is 10 — find BC.
Practice this with igni → -
Law of sines and cosines
Solving a triangle with no right angle. Side a is opposite angle A, side b opposite B, side c opposite C.
a is 8, b is 11, the angle between them is 52° — find c.
Practice this with igni → -
Unit circle and exact values
Sin, cos and tan of the special angles in radians and degrees, and the sign in each quadrant.
sin(5π/6)
Practice this with igni → -
Solving trig equations
Finding every solution in an interval, including equations that need factoring or an identity first.
2cos x − 1 = 0 on [0, 2π)
Practice this with igni → -
Verifying identities
Rewriting one side until it matches the other, using the Pythagorean and reciprocal identities.
(1 − cos²x) / sin x = sin x
Practice this with igni → -
Graphs of sine and cosine
Amplitude, period, phase shift and vertical shift, read from an equation or off a graph.
y = 3sin(2x − π) + 1
Practice this with igni →
Two minutes
Try a typical trig problem
Practice problems in the ALEKS style — not real ALEKS questions. igni checks each step and points at the line where something broke.
-
Trig equations
Solve 2sin2x − sin x − 1 = 0 for every x with 0 ≤ x < 2π, in radians
Solve it step by step -
Exact values
Find the exact value of tan(7π/4), without a calculator
Solve it step by step -
Identities
Show that tan x · cos x = sin x wherever tan x is defined
Solve it step by step -
Right triangles
A 20 foot ladder leans against a wall at 70° to the ground. How high does it reach?
Solve it step by step
How it works
Solve trig on paper, checked line by line
-
1
Upload your problem
Snap a photo, paste, or type any math problem you're stuck on.
-
2
Keep solving
Receive one hint at a time to help you keep solving — never the final answer.
-
3
Get it done
Complete the problem yourself and feel ready for the next one.
Trig is easier on paper. Write each step the way you would in an exam, snap a photo, and igni tells you whether it holds up before you build the next line on it.
Underneath
Shaky on the algebra underneath?
Most trig mistakes are really algebra mistakes: factoring, fractions or square roots. If those feel rusty, how to get better at algebra names which of the five common slips is yours, and is precalculus hard? covers what comes next.
Just starting an ALEKS precalculus or trigonometry course? Read about the Initial Knowledge Check first.
Questions
Trigonometry help FAQ
The usual causes are a decimal where an exact value was asked for, degrees where the question wanted radians (or the reverse), a missing solution, or a solution outside the required interval. Check what form and what interval the question asks for before you submit.
It helps a great deal. Many ALEKS trig questions ask for exact values of the special angles, and knowing the unit circle — or being able to rebuild it quickly — is much faster than deriving each one.
No fixed answer key exists: ALEKS chooses and generates questions from your own answers, so what you are asked is not what the student next to you is asked.
Understanding the method is what gets you through a topic anyway. ALEKS asks you to show understanding as you work, and if a later Knowledge Check finds you have not retained something it can put that topic back on your Learning Path.
Yes. You write the proof one line at a time and igni checks each step, so you see exactly where a substitution or a sign went wrong instead of finding out at the bottom of the page.
ALEKS has dedicated Trigonometry and PreCalculus courses, and separate “with Trigonometry” versions of Algebra 2 and College Algebra. Some geometry and integrated math courses carry introductory trigonometry too — right-triangle work in particular.
The course names matter here: a standard Algebra 2 or College Algebra course is not the same product as the “with Trigonometry” version and may not include these topics at all. Check your own course’s topic list rather than assuming.
Still stuck on something? Talk to us.
Stuck on a trig topic right now?
Snap the problem in front of you and solve it one line at a time.
- Works in any browser
- No card needed to start
- You still do the math
Not sure where your gaps are? Answer a few questions and igni builds a plan around the course you are in.