Prove that sec^-1(-x) = Π - sec^1(x)
Answers
Answered by
3
well its obvious as in 2 nd quadrant sec is negative
Well lets prove
sec^-1( -x) = y
secy = - x
- secy = x
sec( pie -y) = x
take sec^-1
sec^-1 sec( pie- y) = sec^-1x
sec^-1x = pie- y
y= pie - sec^-1x
sec^-1(-x) = pie - sec^-1x
Similar questions