Question

can any give me answer of this question please step by step​

Answer 1

QUESTION⤵️

${sin}^{2} 50 - \: {sin}^{2} 40$

ANSWER⤵️

FORMULA USED:::-

$sin \: \theta \: = \: cos(90 \degree - \theta)$

LET'S DO IT:::-

$\huge{\underline{\boxed{\blue{LHS}}}}$

$: \longrightarrow {sin}^{2} (90 \degree - 40 \degree) \: + {sin}^{2} 50 \degree$

$: \longrightarrow \: {sin}^{2} 50 \degree - {sin}^{2} 50 \degree$

$: \longrightarrow \pink{0}$

$\huge{\underline{\boxed{\blue {RHS}}}}$

HOPE IT HELPS

$\purple{BE \: \: BRÃÎÑLY❥}$