Date
Prove that sintheta sec theta+costheta cosec theta=
2 cosec 2theta​

See Below.

Step-by-step explanation:

We want to prove that:

Let secθ = 1 / cosθ and cscθ = 1 / sinθ:

Creat a common denominator. Multiply the first fraction by sinθ and the second by cosθ. Hence:

Combine fractions:

Simplify. Recall that sin²θ + cos²θ = 1:

Multiply the fraction by two:

Recall that sin2θ = 2sinθcosθ. Hence:

By definition:

Hence proven.

associative property hopes this ! : )

step-by-step explanation:

i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,