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The expression tan 57° + cot 37° is equal to tan 33° + cot 53°
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- tan 33° cot 57°
- tan 57° cot 37°
- tan 33° cot 53°
- tan 53° cot 37°
Correct Option: B
| tan 33° + cot 53° |
| tan 33° + cot 53° |
[∵ tan(90° – θ) = cotθ, cot (90° – θ)= tanθ]
| = | × | tan 33° . tan 53° + 1 | tan 33° |
= tan 53° . cot 33°
= cot 37° . tan 57°
