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[" (B) "2],[" हिन्तिजों "(cos theta,sin ...

[" (B) "2],[" हिन्तिजों "(cos theta,sin theta)" atर "(cos theta,cos theta)" की वीथ की दूरी "],[" होगा। "]

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(cos theta + sin theta) ^ (2) + (cos theta-sin theta) ^ (2) =

cos theta+sin theta=cos2 theta+sin2 theta

If cos theta+sin theta=sqrt(2), then cos theta-sin theta=

(cos theta + sin theta )^(2) + (cos theta - sin theta )^(2) =

((sin theta+cos theta)^(2)-1)/(sin theta*cos theta)

(sin theta-cos theta)^(2)*(sin theta+cos theta)^(2)=

int cos 2theta log ((cos theta+sin theta)/(cos theta-sin theta))d theta

2(cos theta+cos2 theta)+(1+2cos theta)sin2 theta=2sin theta

int cos2 theta * ln ((cos theta + sin theta) / (cos theta-sin theta)) d theta

If A=[[sin theta,cos theta-cos theta,sin theta]] then A^(2)=