Question

If coseca=15/7 and a+b=90 find the valur of secb

Answer 1

Answer:

Step-by-step explanation:

cosec(a) = 15/7

given a+b = 90

b = 90 - a

apply sec on both sides

sec(b) = sec(90 - a)

sec(b) = cosec(a)

sebc(b) = 15/7