Question

sin cos A + cos a Sin A + sin square A + cos square A minus one​

Answer 1

Answer:

sin cos A + cos a Sin A + 1-1

=>sincosA+cosaSinA

hope this to be enough.

Answer 2

$\Large\underline{\sf \green{ Solution:}}$

$\implies \sf \sin A \cos A+ \cos A \sin A+ { \sin}^{2} A + { \cos}^{2} A - 1 \\ \\\implies \sf 2( \sin A \cos A) + 1 - 1 \\ \\\implies \sf 2( \sin A \cos A)$

$\Large\underline{\sf \green{ Identity\:used:}}$

$\large\sf \implies\sin^2A + \cos^2A = 1$