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" 20."(1+sin theta-cos theta)/(1+sin the...

" 20."(1+sin theta-cos theta)/(1+sin theta+cos theta)=tan(theta)/(2)

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Prove that (1+sin theta-cos theta)/(1+sin theta+cos theta)=tan((theta)/(2))

Prove that: :(1+sin theta-cos theta)/(1+sin theta+cos theta)=tan(theta)/(2)

(1+sin2 theta-cos2 theta)/(1+sin2 theta+cos2 theta)=tan theta

Prove that : (1+ sin theta - cos theta) / (1+ sin theta + cos theta ) = tan (theta/2)

Prove that : (1+ sin theta - cos theta) / (1+ sin theta + cos theta ) = tan (theta/2)

Prove that :(1+sin theta-cos theta)/(1+sin theta+cos theta)=tan backslash(theta)/(2)

(sin theta+sin2 theta)/(1+cos theta+cos2 theta)=tan theta

(sin theta+sin2 theta)/(1+cos theta+cos2 theta)=tan theta

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

If tan theta=(20)/(21), show that (1-sin theta+cos theta)/(1+sin theta+cos theta)=(3)/(7)