Question

यदि sin (a-b)=1/2 और cos (a+b)=1/2 0°<a+b<90°a और b​

Answer 1

Answer:

if sin(a-b) = 1/2 then a-b=30--- 1

if cos(a+b)=1/2 then a+b=60----2

on doing 1+2

a-b+a+b=60+30

2a=90

a=45

on substituting a value in eq 1 we get

b=15

hence,..a=45 and b=15