If `theta` is an acute angle such that `costheta=3/5` , then `(sinthetatantheta-1)/(2tan^2theta)=` (a) `(16)/(625)` (b) `1/(36)` (c) `3/(160)` (d) `(160)/3`

If theta is an acute angle such that cos theta=(3)/(5) then (sin theta tan theta-1)/(2tan^(2)theta)=(16)/(625) (b) (1)/(36) (c) (3)/(160) (d) (160)/(3)

If theta is an acute angle , cos theta = 7//25 , then tan 3 theta =

If theta is an acute angle and tan theta+sec theta=1.5 find sin theta,tan theta and sec theta.

If theta is an acute angle and sintheta=costheta , find the value of 2tan^2theta+sin^2theta-1

If theta is an acute angle and sintheta=costheta , then find the value of 2tan^(2)theta+sin^(2)theta-1 .

If theta is an acute angle and tan theta + sec theta = 1.5 , find sin theta, tan theta and sec theta .

If theta is an acute angle such that sec^2theta=3 , then the value of (tan^2theta-cos e c^2theta)/(tan^2theta+cos e c^2theta) is (a) 4/7 (b) 3/7 (c) 2/7 (d) 1/7

If theta is an acute angle such that tan^2theta=8/7 , then the value of ((1+sintheta)(1-sintheta))/((1+costheta)(1-costheta) is (a) 7/8 (b) 8/7 (c) 7/4 (d) (64)/(49)

If theta is an acute angle such that sec^(2)theta=3 then the value of (tan^(2)theta-cos ec^(2)theta)/(tan^(2)theta+cos ec^(2)theta) is (4)/(7)(b)(3)/(7)(c)(2)/(7)(d)(1)/(7)

If 3costheta=1 , find the value of (6sin^2theta+tan^2theta)/(4costheta)