Cos28+sin28=k^3COS(90−62)+sin28=k^3sin62+sin28=k^32sin(62+282)cos(62−282)=k^32sin45cos17=k^32×1/root2×cos17=k^3√2×cos17=k^3cos17=k^3/root2hope it HELPS you. . . . . . FOLLOW me. . . . MARK as a BRAINLIST. . .
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