`x tan^2 120^@+4 cos^2 150^@=9 => x =` 1)3 2) 1 3) 2 4) 4

x tan^(2)120^(@)+4cos^(2)150^(@)=9rArr x=1)3213)24)4

If xtan^(2) 120^(@) + 4 cos^(2) 150^(@) = 9 then x =

If x cot^(2)120^(@)+4sin^(2)150^(@)=3, then x=

If (cos^2 x + 1/(cos^2 x)) (1 + tan^2 2y)(3 + sin 3z) = 4 ,then

tan ^ (- 1) ((1) / (4)) + tan ^ (- 1) ((2) / (9)) = (1) / (2) tan ^ (- 1) ((4) / (3))

Without expanding, find the value of: (i) (x + 1)^4 - 4(x + 1)^3 (x - 1) + 6(x + 1)^2 (x - 1)^2 - 4(x + 1) (x - 1)^3 + (x -1)^4 (ii) (2x - 1)^4 + 4(2x - 1)^3 (3 - 2x) + 6(2x - 1)^2 (3 - 2x)^2 + 4(2x - 1) (3 - 2x)^3 + (3 - 2x)^4

If cos^(2) x + cos^(4) x =1 then tan^(2) x + tan^(4) x=

(3 sin^(-1)) ((2x)/(1+x^2)) - (4 cos^(-1)) ((1-x^2)/(1 + x^2)) + (2 tan^(-1)) ((2x)/(1-x^2)) = π/3

The term independent of x in expansion of ((x+1)/(x^(2/3)-x^(1/3)+1)-(x-1)/(x-x^(1/2)))^10 is (1) 120 (2) 210 (3) 310 (4) 4

The term independent of x in expansion of ((x+1)/(x^(2/3)-x^(1/3)+1)-(x-1)/(x-x^(1/2)))^10 is (1) 120 (2) 210 (3) 310 (4) 4