Question
In Which Year was the North Atlantic Treaty Organization
(NATO) Established?Solution
NATO was established in 1949 to provide collective security against the Soviet Union. It was the first peacetime military alliance the United States entered into outside the Western Hemisphere.
If A + B = 450 , then the value of 2(1 + tanA) (1 + tanB) is:
- If 8cos 2 Ā A + 3sin 2 Ā A = 9, then calculate the value of (sec 2 Ā A - 1).
If x+  1/x = 2cosθ, then the value of x³+  1/x³ is
If cos2B = sin(1.5B + 48o), then find the measure of 'B'.
The minimum value of 77 sin Īø + 36cosĪø is
Simplify the following trigonometric expression:
14 tan 25° cot 65° ā 6 cos 39° sec 51°- If cosec A = (2/ā3), then what will be the value of tanā“ A?
The angles of elevation of the top of a flagpole from two points A and B on level ground are 30° and 60° respectively. The points A and B are on the s...

TakeĀ Īø = 450
If sec²x + csc²x = 10, find the value of tan²x + cot²x.