- If cos(AB) 1 , 2 sin(AB) and A,B are acute angle, find the values of
AandB.
- Solve :
3 1
3 1
cosA sinA
cosA sinA
.
- If A,B are acute angle and cot(AB) 1,cot(AB) 3 , find the values of
AandB.
- Show that, cos 3 A 4 cos^3 A 3 cosA, when A 30 $.
- Solve : sinθcosθ 1 , when 0 $dθd 90 $.
- Solve : cos^2 θsin^2 θ 2 5 cosθ, when θ is an acute angle.
- Solve : 2 sin^2 θ 3 cosθ 3 0 ,θ is an acute angle.
- Solve: tan^2 θ( 1 3 )tanθ 3 0.
- Find the value : $ cosc 30 $ 5 sin 45 $ 4 cos 60 $
4
1
3 cot^260 e^2 ^2 ^2.
- If B 90 $,AB 5 cm,BC 12 cm. of 'ABC
(a) Find the length of AC.
(b) IfC θ, find the value of sinθcosθ.
(c) Show that, sec^2 θcos^2 θ sec^2 θcosec^2 θ.
(a) what is the measurement of AC.
(b) Find the value of tanAtanC.
(c) Find the values of x and y.
