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Evaluate the Following :Tan35∘/Cot55∘ + Cot78∘/Tan12∘ - 1 - CBSE Class 10 - Mathematics

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Question

Evaluate the following :

`tan 35^@/cot 55^@  + cot 78^@/tan 12^@  -1`

Solution

We have to find:

`tan 35^@/cot 55^@  + cot 78^@/tan 12^@  -1`

since `tan (90^@ - theta) = cot theta` and `cot (90^@ - theta) = tan theta`

 = 1

So value of `(tan 35^@)/(cot 55^@) + (cot 78^@)/(tan 12^@)` is 1

  Is there an error in this question or solution?

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Solution Evaluate the Following :Tan35∘/Cot55∘ + Cot78∘/Tan12∘ - 1 Concept: Trigonometric Ratios of Some Specific Angles.
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