Question

Which of following are true:
(A) sin37° + cos37° = sin53° + cos53°
(C) tan37° + 1 = tan 53° -1 .
(B) sin37º-cos37° = cos53 - sin53
(D) tan37° tan53° = 1​

Answer 1

Explanation:

$\sin(37) + \cos(37) = 3 \div 5 + 4 \div 5$

$\sin(53) + \cos(53) = 4 \div 5 + 3 \div 5$

$3 \div 5 + 4 \div 5 = 7 \div 5$

$4 \div 5 + 3 \div 5 = 7 \div 5$

Answer 2

Answer D because on substitution of values of tan 37&53 It gives the