Question

if sec theta = cos^2 theta then find the value of sin^4theta +2sin^3theta +sin^2theta​

Answer 1

given that sec theta = cos²theta

=> 1/cos theta = cos²theta

=> 1 = cos³theta

=>cos³theta = 1

=>cos theta = 1

=> theta = 0

we have to find

sin^4theta +2sin³theta+sin²theta

where theta =0

=> sin^4(0) + 2sin³(0) + sin²(0)

= 0

i hope it will help u

Answer 2

Answer:

Hope it helps you friend.