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Explanation: The Sone River Valley Project is the oldest multi-purpose river valley project in Bihar, built mainly for irrigation and hydroelectricity. The Damodar Valley Project is more related to Jharkhand and West Bengal, while the Kosi Project came later.
In a right triangle ABC, angle B = 90°. If tan A = 3/4 and the length of the hypotenuse is 25 cm, find the area of the triangle.
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<...
cos A (sec A – cos A) (cot A + tan A) = ?
If (sin 3A sec 6A = 1) , then what will be the value of cos 6A?
If sin3A = cos(5A-30°), then what is the value of A? Given that 3A is an acute angle.
What is the value of (1 - sin A)/(1 + Sin A) given that tan A = 5/12 and 0° ≤ A ≤ 90°.
∆ PQR is right-angled at Q. If ∠R = 60º, then find the value of cosec P.