Question

if a sin 45 ˚ = b cosec 60 ˚ then find the value of a⁴/b⁴

A 63/13 Correct Answer Incorrect Answer
B 64/9 Correct Answer Incorrect Answer
C 65/9 Correct Answer Incorrect Answer
D 74/5 Correct Answer Incorrect Answer

Solution

a sin 45 ˚ = b cosec 60 ˚ or a x (1/√2) = b x (2/√3)`` or a/b =√2 x (2/√3) `` so, (a/b)⁴ = (√2 x (2/√3) )⁴ = 16 x (4/9) = 64/9

Practice Next

Relevant for Exams:

×
×