pls help me out with this sum
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Step-by-step explanation:
sec^2A = 1/cos^2A
Cos^2A= 1-sin^2A
Cos^2A= 1-(3/5)^2
Cos^2A= 1-(9/25)
Cos^2A= 16/25
so sec^2A= 1/(16/25)= 25/16
tanA = 3/4 and tanB = 5/12
tanA+tanB = 3/4+5/12
= 9/12+5/12
= 14/12
= 7/6
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