Question 4
If tan A = cot B, prove that A + B = 90 .
Given
tan A = cot B
To solve this we should know relation between tan and cot
Now, We know that cot θ = tan (90 - θ)
Putting value of cot B
tan A = tan (90 - B)
Comparing angles
A = 90 - B
A + B = 90
Hence proved.
Made by
Davneet Singh
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo
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