wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If cot1(1+sinx+1sinx1+sinx1sinx)=xm,x(0,π4).Find m

Open in App
Solution

0<x<(π4)hence0<(x2)<(π8)andsosin(x2)<cos(x2)1+sinx=sin2(x2)+cos2(x2)+2sin(x2)cos(x2)=sin(x2)+cos(x2)and1sinx=cos(x2)sin(x2)hencegivenexpressioninquestion=cot1[(sin(x2)+cos(x2)+cos(x2)sin(x2)sin(x2)+cos(x2)cos(x2)+sin(x2))]=cot1(cot(x2))=(x2)hencem=2


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Basic Inverse Trigonometric Functions
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon