If tan A = a/b, which of these equals (a sin A - b cos… | StemPy Lab

Help Contact For teachers and institutes

Mock Tests Classes

StemPy Lab

Learn. Solve. Code the solutions. Test yourself.

Live examsFree mock exams, timed and rankedEveryone starts together, and your score and rank come the moment it ends.See the exams →

Learn

Physics
Chemistry
Mathematics
Biology
Python Programming
Statistics & Data Science
Classes
Groups

Practice

Problems
Quizzes
Mock Tests
Prepare for an Exam
Question Sets
Exams
Certificates
Python Labs
AI Practice Generator
Student-Created Tests

Community

Discussions
Resources
Notes
Blog

Account

Dashboard
My Content
Profile
Log in

© 2026 senLearn. All rights reserved.Help About Contact Privacy Policy Terms of Use Refund Policy

If tan A = a/b, which of these equals (a sin A - b cos… | StemPy Lab

Quizzes
If tan A = a/b, which of these equals (a sin A - b cos A)/(a sin A + b cos A)?

MathematicsHardHigh School (9–10)GeneralTrigonometry › Trigonometric Identities Olympiad SAT

Created by StemPy Lab

If $\tan A = \dfrac{a}{b}$ , which of these equals $\dfrac{a\sin A - b\cos A}{a\sin A + b\cos A}$ ?

← All Quizzes

← Evaluate (cos² 30° + sin² 45°)/(tan² 60° - sec² 45°).The sum of the secant and the tangent of an acute angle A is 4. What is cos A? →

More onTrigonometry › Trigonometric Identities

Discussion (0)

Log in to join the discussion.

Loading…

More questions on this topic

An acute angle A has cos A = √3/2. What is (1 - tan² A)/(1 + tan² A)?Medium
How many whole numbers n from 0 to 89 make tan n° a whole number?Hard
If x = 3 secθ and y = 5 tanθ, which equation links x and y without θ?Medium
Which expression is equal to sin⁴ A - cos⁴ A for every angle?Medium
As A runs over the angles from 0° (not included) to 90°, what is the least value of sin² A +…Hard

All questions on this topic →

Problems on this topic

Imran writes: "sin² A + cos² A = 1, so taking square roots, sin A + cos A = 1." Find sin 45° + cos…Medium
Prove that sec⁴ A - sec² A = tan⁴ A + tan² A, and find both sides at A = 60°.Hard
Prove that (1 + tan² A)/(1 + cot² A) = tan² A, and find the value of both sides at A = 60°.Medium
Prove that (sin A + cosec A)² + (cos A + sec A)² = 7 + tan² A + cot² A…Medium

All problems on this topic →