If cos θ + sin θ = √2 cos θ then show that cos θ – sin θ = √2 sin θ.

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asked Mar 12, 2018 in Mathematics by Golu (37,045 points) 19 145 415

If cos θ + sin θ = 2 cos θ then show that cos θ – sin θ = 2 sin θ.

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answered Mar 12, 2018 by faiz (82,347 points) 6 6 11
 
Best answer

LHS = RHS   proved

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