Question

(1+sintheta)square +(1-costheta)square =3+2 (sintheta -costheta

Answer 1

Hope this helps you........

Please mark me the brainliest........,

Answer 2

Answer:

3 + 2 ( sin x - cos x  )

Step-by-step explanation:

$(1+sinx )^{2}+(1-cos^{2}x)\\\\=> 1+sin^{2}x+2sinx+1+cos^{2}x-2cosx\\\\=>2+sin^{2}x+cos^{2}x+2sinx-2cosx\\\\=>2+1+2sinx-2cosx\\\\=>3+2(sinx-cosx)$

Hence Proved.

Hope helps u and mark brainliest plz