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Boys : Girls = 5:4 Number of girls = 4/5×1125 = 900 Let boys be added x. So, number of boys = 1125 + x According to the question, => (1125 + x)/900 = 6/5 => 1125 + x = 1080 => x = 45
The value of (sin 60 º cos 30 º - cos 60 º sin 30 º) is equal to:
If (sinx + siny) = a and (cosx + cosy) = b, then find the value of (sinx siny + cosx cosy).
[A] (a²+b²-2)/ 2
[B] (a2-b2<...
The angle of elevation of the top of a 70 feet tall tower from the initial position of a person on the ground was 30°. She walked towards the tower in ...
If tan θ = 8/3 , then the value of (3Sinθ+2 Cosθ )/(3 Sinθ-2Cosθ) is
If tan 4θ = cot 14θ, then find the value of cos 9θ.
Find the exact value of cos120°
If A and B are complementary angles, then the value of-
sin A cos B + cos A sin B – tan A tan B + sec 2
ABC is an isosceles triangle where AB = AC which is circumscribed about a circle. If P is the point where the circle touches the side BC, then which of ...
If sin(x-y) = 1 and cos(x+y) = 1 /√2 then what is measure of angle x.