1.

If ∫ |sinx| x∈[a,b] dx = 8 and ∫ |cosx| x∈[0,a + b] dx = 9 then the value of a and b are(a)  π/4, 17π/4(b)  3π//4, 19π/4(c)  π/6, 25π/4(d)  None of these

Answer»

Correct option (a)  π/4, 17π/4

Explanation:

b – a = 4π & (a+b) – 0 = 9π/2

Solving we get

a = π/4 b = 17π/4



Discussion

No Comment Found