Verify the basic trigonometric identity sin? 0+ cos² 0 =1 using trigonometric ratio of any acute angle. Proof the identity sin 0+ cos* 0 = - (3+cos 40) and solve the 4 sin * 0 + cos“ : 2 for 0° < 0 <180°. Give your answers correct to 2 3 equation decimal places.

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