Question

If a+b=90° and a=2b then find the value of 2sin b+4cos a+2sec a+8cosec b??

Answer 1

hope it's helpful for you

Answer 2

Answer:

23

Step-by-step explanation:

a+b = 90

2b+b=90  (a=2b)

3b=90

b=30

a=2b=2(30)=60

Now,

2sin30 + 4cos60 + 2sec60 + 8cosec30

= 2 (1/2) + 4 (1/2) + 2(2) + 8(2)

= 1+2+4+16

=23

Hope it helps