Q10 of 143 Page 6

If tan A = 3/4 and A + B = 90°, then what is the value of cot B ?

Given,


tan A = 3/4 and


A + b = 90°


So we have,


A = 90° - B


So,


tan A = tan (90° - B) = 3/4


∵ cot B = tan A


Therefore,


cot B = 3/4


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