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Ex. 11. Verify:(i) sin’0 + cos² 0 = 1 if 0 = 30°;​

Answer» SIN ∅ + cos² ∅ ≠ 1Step-by-step EXPLANATION:sin∅ = 30 =1/2cos∅ = 30 =√3/21/2+(√3/2)²= 1 1/2+3/4 = 1 5/4 ≠ 1hence, sin ∅ + cos² ∅ ≠ 1


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