Question

prove it .............​

Answer 1

Given Prooving in attachment.

Explainations

• We know that 1 - sin²∅ = cos²∅ and 1 - cos²∅ = sin²∅.

• Similarly we already know that sin²∅ + cos²∅ = 1.

• Don't forget that cosec²∅ = 1/sin²∅ and sec²∅ = 1/cos²∅.

• Cancel out the similar terms and we will be left behind with identity.

• Since final outcome is 1, which makes L.H.S = R.H.S.

Hence Proved

Answer 2

Answer:

Step-by-step explanation:

xplainations

• We know that 1 - sin²∅ = cos²∅ and 1 - cos²∅ = sin²∅.

• Similarly we already know that sin²∅ + cos²∅ = 1.

• Don't forget that cosec²∅ = 1/sin²∅ and sec²∅ = 1/cos²∅.

• Cancel out the similar terms and we will be left behind with identity.

• Since final outcome is 1, which makes L.H.S = R.H.S.