Question

find the exact value of 3csc 45°+2 cos 45°​

Answer 1

Answer:

4√2

Step-by-step explanation:

as we know that, cos 45 = 1/√2, sin 45 = 1/√2

and cosec 45 = 1/sin 45 = √2

so, 3csc 45°+2 cos 45° = 3 (√2) + 2(1/√2) = (3*2 + 2)/√2

= 8/√2 = 4√2