What is the value of sqrt(pow(fabs(-4.0),3)) in c++?

Question

Question

Answer 1

Answer #1

fabs(n) in C++ Returns the absolute value of n: |n|. It is different from Abs() in a way it will not truncate decimals.

Pow(x,n) return the X^n means Pow(2,3) will return 2^3=8

Sqrt(x) will return the square root of X. SQRT(4) will give 2.

So sqrt(pow(fabs(-4.0),3)) will give : 8

because first fabs(-4.0) will calculate and give 4

then pow(4,3) will give 64

then sqrt(64) will give 8.

Answer 2

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