An incomplete proof of 1 - tanøcosø / cscø is shown. which of the following expressions could be used to complete the second step of the proof?

D) 1 - sin(Ф)/csc(Ф)

Step-by-step explanation:

We have to simplify RHS of the step 1

In the numerator, cos(Ф) and cos(Ф) get cancelled.

1  - sin(Ф)/csc(Ф)

The answer is D) 1 - sin(Ф)/csc(Ф)

Hope this will helpful.

Thank you.

trigonometric identities

1 C sin^2

2 B csc x(csc x-1)

3 D 1-sin theta/ csc theta

4 D tan x sin x

5 A cos x cot2 x

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

lo.lll

step-by-step explanation: