##### Print Instructions

NOTE: Only your test content will print.
To preview this test, click on the File menu and select Print Preview.

See our guide on How To Change Browser Print Settings to customize headers and footers before printing.

# Applying Trigonometric Identities (Grades 11-12)

Print Test (Only the test content will print)

## Applying Trigonometric Identities

1.
$1-sin^2x=cot^2x$
1. True
2. False
2.
Simplify $cot x sec x$.
1. $cos x/ sin^2 x$
2. $sin x$
3. $csc x$
4. $sec ^2 x$
3.
Simplify $sin⁡ x \ csc⁡ x$ .
1. $sin ^2 x$
2. $-1$
3. $tan x$
4. $1$
4.
Which expression is equivalent to $tan x - (sec x/ sin x)?$
1. $-cot x$
2. $cot x$
3. $tan x - cot x$
4. $tan x - sec^2 x$
5.
Simplify. $(1-cos^2 x)/tan^2 x$
1. $-cos^2 x$
2. $sec^2 x$
3. $cos^2 x$
4. $sin^2 x$
6.
Which expression is not equivalent to 1?
1. $sin^2 x + cot^2 x sin^2 x$
2. $sin^2 x/(1- cos x) - cos x$
3. $sec^2 x + tan^2 x$
4. $(cot^2 x sin^2 x)/ cos^2 x$
7.
Simplify. $-5(cot^2 x - csc^2 x)$
1. $5$
2. $-5$
3. $-5 csc^2 x$
4. $5 sec ^2 x$
8.
Which expression is equivalent to $(sin^2 x+ cos^2 x)/ tan^2 x ?$
1. $cot^2 x$
2. $cos ^2 x + cot ^2 x$
3. $cos ^2 x + cos ^ 4 x$
4. $csc ^2 x$
9.
Which expression is equivalent to $(1 + sin^2 x sec^2 x)/sec^2 x - cos^2 x$?
1. $1$
2. $csc^2x$
3. $sin^2x$
4. $2cos^2x$
10.
Express $2 cos4x sin2x$ as an algebraic sum of sines or cosines.
1. $cos6x - sin2x$
2. $sin 6x - sin x$
3. $sin 6x - sin2x$
4. $sin 6x - sin3x$
You need to be a HelpTeaching.com member to access free printables.