if tan x = 4/3, find the value of : 4 sin^(2)x - 3cos(^2)x + 2
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Tanx=4/3 implies Sin x=4/5, cos x=3/5 then
4 sin^2 x - 3cos^2x+2 =4(16/25)-3(9/25)+2
=64/25-27/25+2
=37/25+2=87/25
4 sin^2 x - 3cos^2x+2 =4(16/25)-3(9/25)+2
=64/25-27/25+2
=37/25+2=87/25
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