sin(B+ Then k 10. The value of k= sin (a (k-1) + kat SIL 6 A) +2 is equal to A) 3-13 C) 2(13-1) (JEE Adv.2016) B) 2(3-73) D) 2(2-3) 18. IfA, B,

The value of cos^2 17^@ - sin^2 73^@ is (a) 1 (b) 1/3 (c) 0 (d) -1

The value of (1)/(sin 10^(@)) -(sqrt3)/(cos 10^(@)) is equal to .............. A) 1 B) 2 C) 4 D) 3

The value of "2sin"^(2)(pi)/(3)-"cos"^(2)(pi)/(6)+"tan"^(2)(pi)/(6) is equal to A. 7/12 B. 13/12 C. 13/4 D.- 13/12

The value of sum_(K=1)^(2015)cos((2kpi)/(13))(i-tan((2k pi)/(13)) is a) -1 b) 0 c) 1 d) 2

If z_(k)=cos((k pi)/(10))+i sin((k pi)/(10)), then z_(1)z_(2)z_(3)z_(4) is equal to (A)-1 (B) 2(C)-2 (D) 1

Find the value of k if the points (k+1,1),(2k+1,3) and (2k+2,2k) are collinear.

If the 7th and 8th term of the binomial expansion (2a - 3b)^(n) are equal, then (2a +3b)/(2a-3b) is equal to a) (13-n)/-(n+1) b) (n+1)/(13-n) c) (6-n)/(13-n) d) (n-1)/(13-n)

If (FIGURE),the values of a and b are 1,2 (b) 2,3quad (c) 1,3 (d) None of these