Prove that 1/2cosa = √2sina
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it can't be proved... but can b solved for x
sq. both sides
1/2=√2sinacosa
1/2√2=sin2a/2
sin2a=1/√2
2a=π/4
a=π/8
sq. both sides
1/2=√2sinacosa
1/2√2=sin2a/2
sin2a=1/√2
2a=π/4
a=π/8
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