YASH CLASSES
1 IF
Sin x =
3 / 5 find cos x
and tan x .
2. If
tan x = 3 /4 find sin x and cos x . 3. If Sec x
= 13 / 12
find cosec x and cosx.
4. IF
cos x = ½ find the value of
2 sec x/ [ 1 + tan2x
5. For A = 300 , B = 600 verify
that
Sin [A+ B] = SinACos B + CosASinB
6 . Cosec2 740 - tan 2
160 = 1
7 Sin 2 210 + sin 2
690 = 1
8 sec2 740 - cot 2
160 = 1
9 Cos2 440 - sin 2
460 = 1