Grade 12th pass10 grade maths
4. If tan A = cot B, prove that A + B = 90°.
4. If tan A = cot B, prove that A + B = 90°.
1 Answer
Pawan Prajapati
tan A = cot B
We know that cot B = tan (90° – B)
To prove A + B = 90°, substitute the above equation in the given problem
tan A = tan (90° – B)
A = 90° – B
A + B = 90°
Hence Proved.
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