Question
Which planet is known as the "Red
Planet"?Solution
Mars is known as the "Red Planet" because of its reddish appearance caused by iron oxide (rust) on its surface.
If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
If (2sin A + cos A) = 3sin A, then find the value of cot A.

- Find the maximum value of (12sin A + 16cos A).
Find the value of the given expression.
5 × (cos 60°)
If tanθ = x then find the value of cos 2θ?
In an election involving two parties, 16% of the total votes were invalid. One of the candidates received 58% of the valid votes, and the other got 19,0...
If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` + `1/sec q` + `1/sec r` +`1/sec s`
...If A + B = 450 , then the value of 2(1 + tanA) (1 + tanB) is:
If cos4B = sin(B - 10°), then find the measure of 'B'.