which of the following is not possible `(1) sin theta= 5/7 (2)cos theta = (1+a^2)/(1-a^2) , |a| != 1 , (3) tan theta = 100 , (4) sec theta =5 `

Which of the following possible? 1)sin theta=2 2) cos theta=(17)/(5)3)tan theta=24)sec theta=(4)/(5)

Which of the following is possible? sin theta=(5)/(3) (b) tan theta=1002cos theta=(1+p^(2))/(1-p^(2)),(p!=+-1)(d)sec theta=(1)/(2)

Which of the following is incorrect?(a) sin theta=-(1)/(5)(b)cos theta=1(c)sec theta=(1)/(2)(iv)tan theta=20

. Which one of the following is possible (a) sin theta=(a^(2)+b^(2))/(a^(2)-b^(2))(a!=b)( b) sec theta=(4)/(5)(c)tan theta=45(d)cos theta=(7)/(3)

. Which one of the following is possible (a) sin theta=(a^(2)+b^(2))/(a^(2)-b^(2))(a!=b)( b) sec theta=(4)/(5)(c)tan theta=45(d)cos theta=(7)/(3)

sin^(4) theta + 2 cos^(2) theta (1 - (1)/( sec^(2) theta)) + cos ^(4) theta =

Prove the following identity : (1+cos theta)/(1-cos theta)= (tan^2 theta)/((sec theta-1)^2) .

sec^(4) theta (1-sin^4 theta ) - tan^(2) theta =

Prove each of the following identities : (i) (sec theta -1)/(sec theta +1) =(sin^(2) theta)/((1+ cos theta)^(2) ) (ii) (sec theta - tan theta)/(sec theta + tan theta) = (cos^(2) theta)/((1+ sintheta)^(2))

If tan 2theta . Tan 3 theta =1 , then sin5theta =