Maths-
General
Easy
Question
If 
then 
- 1
- -1
- 0
Hint:
When we find sin cos and tan values for a triangle, we usually consider these angles: 0°, 30°, 45°, 60° and 90°. It is easy to memorise the values for these certain angles. The trigonometric values are about the knowledge of standard angles for a given triangle as per the trigonometric ratios (sine, cosine, tangent, cotangent, secant and cosecant).
The correct answer is: 1
If then 
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