`sin{2\ cos^(-1)(-3/5)}` is equal to `6//25` (b) `24//25` (c) `4//5` (d) `-24//25`

cos 5^(@) - sin 25^(@) is equal to

If int_(0)^(x)f(t)dt=x^(2)+int_(x)^(1)(:t^(2)backslash f(t)dt, then f((1)/(2)) is equal to (a) (24)/(25) (b) (4)/(25) (c) (4)/(5) (d) (2)/(5)

(1)/(0.04) is equal to (1)/(40) (b) (2)/(5)(c)2.5(d)25

((-2)/5)^7-:((-2)/5)^5 is equal to 4/(25) (b) (-4)/(25) (c) ((-2)/5)^(12) (d) (25)/4

The value of (1 1/7-2/3+(2/5)/(1-1/(25)))/(1-1/7[1/3+(2/5)/(1-2/5)]) is (a) 3/4 (b) (24)/(25) (c) 1 (d) 1 1/(24)

The value of cot(sum_(n=1)^(2)cot^(-1)(1+sum_(k=1)^(n)2k)) is (a) (23)/(25) (b) (25)/(23) (c) (23)/(24) (d) (25)/(26)

5.5-[6.5-{3.5-:(6.5-5.5-2.5)}] is equal to -1(b)0(c)0.1(d)1

If (x,3)+(2,5)=(7,8) then x is equal to a)2 b)5 c)7 d)9

(sqrt2-sin25^(@)-cos25^(@))/(sin25^(@)-cos25^(@)) is equal to

If A= tan^-1(1/7) and B= tan^(-1)(1/3) then (A) cos2A= 24/25 (B) cos2B=4/5 (C) cos2A=sin4B (D) tan2B=3/4