Q1 .
FIND THE INTERVALS IN WHICH f(x)= LOG(1+x)-X/1+X IS INCREASING OR DECREASING
Q2 .
FIND THE INTERVALS IN WHICH f(x)=SIN X- COS X, WHERE X LIES BETWEEN 0 AND PIE IS INCREASING OR DECREASING
ALSO TELL ME THE GENERAL WAY TO APPROACH THIS QUESTION.........