introduction to trignometry

In a right triangle ABC, the right angle is at B. What is the length of missing side in the figure?

• 25 cm

• 12cm

• 7cm

• 5cm

Tags

CCSS.8.G.B.7

(sin A−2 sin³A)/ (2 cos³A−cos A)=

• tan A

• cot A

• sec A

• 1

(cos A / cot A) + sin A= ?

• cot A

• 2 sin A

• 2 cos A

• sec A

If p cotθ = √(q²-p²), then the value of sinθ is- (θ being an acute angle)

• q/3p

• q/2p

• p/q

• 0

Tags

CCSS.HSF.TF.C.8

The value cot² 30°−2 cos² 60°−3/4 sec² 45°−4 sin² 30° is

• 2

• -1

• 1

• 0

In △PQR, PQ = 12 cm and PR = 13 cm. ∠Q=90° Find tan P – cot R

• -(119/60)

• 119/60

• 0

• 1

Tags

CCSS.HSG.SRT.C.7

If Cosec (A+ B) = 2/√3, sec(A-B)=2/√3
0°<A+B≤90°,
Find A and B.

• 25°,35°

• 30°, 30°

• 45°, 15°

• 10°,50°

Tags

CCSS.HSF.TF.C.9

If x = a cos 0 and y = b sin 0, then b²x² + a²y² =

• ab

• b² + a²

• a²b²

• a4b4

Tags

CCSS.HSA.APR.C.4

If 7 sin² θ + 3 cos² θ = 4, then find the value of tan θ.

• 0

• 1

Tags

CCSS.HSF.TF.C.8

• 5

• 0

• -5

• 1