Question

If cos (A + B) = 0, then sin (A + B) is equal to:

Answer 1

Answer:

$\boxed{\huge\bf \implies:1}$

Step-by-step explanation:

$\bf \: cos (A + B) = 0, \\ \\\bf \implies: cos (A + B) = cos \: 90\\ \\ \bf \implies: (A + B) = 90 - - - - (1)\\ \\ \large\bf sin (A + B) = ? \\ \\ \bf \implies: sin \: 90 - - - - \{frm \: 1\} \\ \\ \boxed{\huge\bf \implies:1}$