trignometry

If A =  $45^0$  then  $\frac{1\ +\cos2A}{\sin2A}$  =

• 2

• 0

• 1

• 3

Tags

CCSS.HSF.TF.C.9

What is the correct equation to solve for x ?

• tan (58) = x/11
• tan (58) = 11/x
• cos (58) = x/11
• sin (58) = x/11

Tags

CCSS.HSG.SRT.C.8

In right triangle ABC, ∠A and ∠B are complementary angles.  The value of cos A = 5/13.  What is the value of sin B?

• 5/13
• 12/13
• 13/12
• 13/5

Tags

CCSS.HSG.SRT.C.7

What is the length of u and v in this 30-60-90 triangle?

• u = 8 v = 4√3
• u = 4√2 v = 8
• u = 16 v = 8
• u = 4√3 v = 8

Tags

CCSS.HSG.SRT.C.8

If tanA=cot(30°+A),then A=.....

• 60°

• 45°

• 30°

• 90°

Tags

CCSS.HSG.SRT.C.7

cosec 31°-sec59°=.....

• 1

• 2

• 0

• 1/2

Tags

CCSS.HSF.TF.C.9

cot 12°•cot38°•cot52°•cot60°•cot78°=.....

• 1/3

• 1/√3

• 1/√2

• √3/2

Tags

CCSS.HSF.TF.C.9

3sin30°-4sin³30°=.....

• 1

• √2

• -1

• 0

Tags

CCSS.HSF.TF.C.9

(Sin30°+cos30°)-(sin60°+cos60°)=......

• 1

• 1/√2

• √3/2

• 0

Tags

CCSS.HSF.TF.C.9

If 2sinA-1=0,. then secA+tanA =........

• 3

• √3

• √2

• 0

Tags

CCSS.HSF.TF.C.8