Question

Prove that 60-6+78-5=sin(90-60)+cos(90-78)

Answer 1

$\huge\red{Solution}$

A 5 sin. A p 1 h cos. A b 1 K (B). v 2 + o 2 sin* A + cos. 2 A = =^P- = 1 (5) The exponent 2, equation ... 5-03+3-75=8-78 ; 5-03-3-75=l-28 ; } (180° -47°) = 66° 30'. ... Tft)+g] x 5 sin. m (1'0 ( 2'.) ...