Prove that:
sin^2 (π/6) + cos^2 (π/3) - tan^2 (π/4) = -1/2
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Answer:
Make Sure you convert the radian(pi/6 etc) into angle by dividing by 180/pi.
To solve the question...
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Step-by-step explanation:
hello
=>sin²(π/6×180/π)+cos²(π/3×180/π)-tan²(π/4×180/π)=-1/2
=sin²30°+cos²60°-tan²45°
=[1/2]²+[1/2]²-1
=1+1-4/4
=>2-4/4=-1/2
=>-1/2=-1/2
=>LHS=RHS
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