Question

if sin( a + b )= 1 and tan (A-B) is equals to 1/root 3. find the value of tan A + cot B​

Answer 1

Step-by-step explanation:

i attached two images please refer it

Answer 2

sin(a+b)=sin90

a+b=90

tan(a-b)=tan30

a-b=30

so from elemination method we get that

a=60 b=30

putting the value of tanA+cotB

=tan60+cot30

=root3+root3

=3.4641