Exam 32: Verifying Trigonometric Equations

Which of the following expressions is equivalent to the given expression $\sqrt { \frac { 25 - 25 \cos \theta } { 1 + \cos \theta } }$ ? (? ? ?n,where n is a whole number) ?

Use the cofunction identities to evaluate the expression without using a calculator. ​ Sin²25° + sin²65° ​

Which of the following expressions is equivalent to $\frac { 5 } { \tan \beta } + 5 \tan \beta$ ? (? ? ?/2+?n,where n is a whole number) ?

Evaluate the following expression.(x ? ?n,where n is a whole number)? $5 \sec ^ { 2 } \left( \frac { \pi } { 2 } - x \right) - 5$ ?

Evaluate the following expression. ? 4 tan x (arcsin x) ?

Evaluate the following expression. ?? $5 \tan \left( \frac { \pi } { 2 } - \theta \right) \tan \theta$ ?

Which of the following expressions is equivalent to the given expression $\sqrt { \frac { 9 + 9 \sin \theta } { 1 - \sin \theta } }$ ? (? ? ?/2 + ?n,where n is a whole number) ?

Which of the following expressions is equivalent to $\frac { 3 \tan 8 x + 3 \tan 8 y } { 1 - \tan 8 x \tan 8 y }$ ? (x ? ?n,y ? ?n,where n is a whole number) ?

Use the cofunction identities to evaluate the expression without using a calculator. ​ Cos²35° + cos²50° + cos²40° + cos²55° ​

Evaluate the following expression.(? ? ?/2 + ?n,where n is a whole number)? $\frac { 3 + 3 \sin \theta } { \cos \theta } + \frac { 3 \cos \theta } { 1 + \sin \theta }$ ?

Evaluate the following expression.? $\frac { \cos 2 x - \cos 2 y } { \sin 2 x + \sin 2 y } + \frac { \sin 2 x - \sin 2 y } { \cos 2 x + \cos 2 y }$ ?

Evaluate the following expression. ​ 2(1 + sin α)(1 - sin α) ​

Evaluate the following expression. ​ 4 tan t cot t ​

Which of the following expressions is equivalent to 3 sin² α - 3 sin⁴ α? ​

Which of the following expressions is equivalent to 2 - 4 cos²x + 4 cos⁴x? ​

Evaluate the following expression.(x ≠ π/2+πn,where n is a whole number) ​ (tan⁵x + tan⁷x)sec²x ​

Evaluate the following expression.? $3 \sec ^ { 2 } y - 3 \cot ^ { 2 } \left( \frac { \pi } { 2 } - y \right)$ ?

Evaluate the following expression.(x ? ?/2 + ?n,where n is a whole number)? $\frac{6 \tan x \cot x}{\cos x}$ ?

Evaluate the following expression.(? ? (?+2?n)/6,where n is a whole number)? $\frac { \sec 3 \theta - 1 } { 1 - \cos 3 \theta }$ ?

Use the cofunction identities to evaluate the expression without using a calculator. ​ Tan²73° + cot²14° - sec²76° - csc²17° ​