Question

if sin[2cos^{cot(2tan^1 X)}]=0,then X=
a)tan(X/8)
b)cot(X/8)
c)0
d)none of these​

Answer 1

Answer:

sin(2cos1−(cot(2tan−1x)))=0

2cos−1(cot(2tan−1x))=sin−10=0

cos−1(cot(2tan−1x))=0

cot(2tan−1x)=cos0

cot(2tan−1x)=1

cot(tan−1(2x1−x2))=1

1−x22x=1

1−x2=2x

x2+2x−1=0

x=−2±4+4−−−−√2

x=−1±2–√.

Step-by-step explanation:

ok