If A + B = 45, Prove that (1 + tanA) (1 + tanB) = 2
If A + B = 45, Prove that (1 + tanA) (1 + tanB) = 2
if A + B = 45°, prove that (1 + tan A) (1 + tan B) = 2
if a + b = 45 prove that (1 tana 1 tanb 2 and hence deduce the value of tan 22 1/2)
fa + b = 45 deg , prove that (1 + tan a)(1 + tan b) = 2
if a+b=135 then (1-tana)(1-tanb)=
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