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B is wrong - the singular noun 'means' is the correct word to be used. C is wrong - here the adjective 'most' is the correct word to be used in order to modify the noun 'people'. D is wrong - to modify the noun 'control', an adjective is needed hence 'social' is the correct form of the word. A is grammatically correct and meaningful. Hence, option A is the correct answer.
If sec 2A = sin2 60o + sec 60o - cos2 30 o , then find the value of (√3tan A + cot ...
If 3 tan X + cot X = 2√3, then find the value of 6 tan2 X + 2 cot2 X.
The minimum value of 3 sin2 θ + 4 cos2 θ is
...If tan θ = 4/3 and θ is an acute angle, find the value of sin θ + cos θ.
if 8 sin 2 x + 3 cos 2 x = 4 then find tan x
Find the value of (1 - sin2q) X (secq + tanq) X (secq - tanq) X cosec2q
If 7sin²θ + 3cos²θ = 4, then find the value of θ?
If sin(3θ) = cos(2θ), then find the value of θ between 0 and 90 degrees.