" (ii) If "tan A=(3)/(4)," prove that "sin A cos A=(12)/(25)

If tanA=(3)/(4) , then show that sin A cos A =(12)/(25)

If tanA=(3)/(4) , then show that sin A cos A =(12)/(25)

If tan theta=(3)/(4), prove that sin2 theta=(24)/(25),cos2 theta=(7)/(25) and tan3 theta=-(117)/(44)

If sin theta=(3)/(5) and 0

If cos x + cos y =(1)/(3) and sin x + sin y=(1)/(4) prove that tan ((x+y)/(2))=(3)/(4)

If cos A + cos B = (1)/(3) and sin A + sin B = 1/4 prove that tan "" (1)/(2) (A+B) = 3/4.

if cos A=(4)/(5) then prove that (tan A)/(1+tan^(2)A)=(sin A)/(sec A)

Prove that (sin5A-sin3A)/(cos5A+cos3A)=tan A

prove that (cos20-sin20)/(cos20+sin20)=tan25

Prove that (i) (sec 8A -1)/(sec 4A -1) =(tan 8A)/(tan 2A) (ii) (cos A+ sin A)/(cos A - sin A)-(cos A-sin A)/(cos A+sin A)=2 tan 2A