" If "a=cos theta+" is in "theta" then "1+a/1-a=

If a=cos theta+i sin theta then (1+a)/(1-a)=

If a = cos theta + i sin theta , then (1 + a)/(1 -a)

If a=cos theta+i sin theta, then (1+a)/(1-a)=(cot theta)/(2) b.cot theta c.i(cot theta)/(2)d*i(tan theta)/(2)

If a=cos theta+i sin theta, then (1+a)/(1-a) is equal to ( i) cot((theta)/(2))( ii) cot theta( iii) i cot((theta)/(2))( iv )i tan((theta)/(2))

if a=cos theta+i sin theta then find (1+a)(1-a)

If alpha=cos theta+i sin theta, then (1+alpha)/(1-alpha) equals ( (i)cot theta(ii)i tan((theta)/(2))(iii)i cot((theta)/(2))(iv)cot((theta)/(2))

If x= cos theta+i sin theta and 1+ sqrt(1-a^(2))=na , show that, (a)/(2n)(1+nx) (1+(n)/(x))=1+ a cos theta