Question

13. If tanA=15/7 and A+B= 90°,then value of cosec Bis
no​

Answer 1

Step-by-step explanation:

A+B =90°=>A=90 - B

tan A=tan(90-B)=cot B=15/7

cosecθ=√1+cot²θ=√(1+225/49)

=√(49+225)/7=√274/7