If 4 cos x sin x - 2 sin x = 3 sin x, then x = (i) `npi+(-1)^npi/10` (ii) `npi-(-1)^npi/10` (iii) `2npi+-pi/10` (iv) `npi+pi/10`

The solution(s) of 4cos^2xsinx-2sin^2x=3sinx is/are npi; n in I (b) npi+9(-1)^npi/(10); n in I npi+(-1)^n(-(3pi)/(10)); n in I none of these

If y=(sin3x)/(sinx), x ne npi , then:

If y=(sin3x)/(sinx), x ne npi , then:

If the middle term in the expansion of (1/x+xsinx)^(10) is equal to 7 7/8 , then the value of x is (i) 2npi+(pi)/6 (ii) npi+(pi)/6 (iii) npi+(-1)^(n)(pi)/6 (iv) npi+(-1)^(n)(pi)/3

The general values of theta satisfying the equation 2sin^2theta-3sintheta-2=0 is (n in Z)dot npi+(-1)^npi/6 (b) npi+(-1)^npi/2 npi+(-1)^n(5pi)/6 (d) npi+(-1)^n(7pi)/6

The general values of theta satisfying the equation 2sin^2theta-3sintheta-2=0 is (n in Z)dot npi+(-1)^npi/6 (b) npi+(-1)^npi/2 npi+(-1)^n(5pi)/6 (d) npi+(-1)^n(7pi)/6

The most general value of x satisfying the equation tan x=(1+sin pi/5 -cos (2pi)/5)/(cos pi/5 + sin (2pi)/5) is (i)npi+pi/5 (ii)npi-pi/5 (iii)2npi+pi/5 (iv) 2npi-pi/5

If complex number (3+2i sin x)/(1-2i sin x) is purely imaginary then x= npi+-pi/6 b. n p+-pi/3 c. 2npi+-pi/3 d. 2npi+-pi/6

The roots of the equation, cotx- cos x=1- cotx*cos x are : (i)npi+pi/4 (ii)2npi+pi/4 (iii)npi+pi/4 or 2npi+-pi (iv) (4n+1)pi/4 or(2n+1)pi; n in I

If 4sin^4x+cos^4x=1 ,then x is equal to (n in Z) (a) npi (b) npi+-sin^(-1)sqrt(2/5) (c) (2npi)/3 (d) 2npi+-pi/4