Question

(1-sinA-cosA)^2=2(1-sinA)(1-cosA)

Answer 1

LHS:

(1-sinA-cosA)²=

1+sin²A+cos ²A-2sinA+2sinA.cosA-2cosA

1+1-2sinA+2sinA.cosA-2cosA

2{(1-sinA). -cosA(1-sinA)}

2(1-sinA)(1-cosA)

hope it's help u

. ✌✌✌✌✌✌