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發問:
05#46 (sin^2)1+(sin^2)3+(sin^2)5+......+(sin^2)87+(sin^2)89= A. 22 B. 22.5 C. 44.5 D. 45 can anyone give me a full explanation? 04#54 The mean deviation of the four numbers x - 8, x - 2, x + 3 and x + 7 is A. x . B. 0 C. 5 D. 5.6
最佳解答:
mean deviation out syl (sin^2)1+(sin^2)3+(sin^2)5+......+(sin^2)87+(sin^2)89= (sin^2)89 = (cos^2)1 (sin^2)1 + (cos^2)1 = 1 ----- (a) 一路計就會計到22個好似(a) 既野 淨低1個 (sin^2)45 (sin^2)45 = 0.5 ans = 22.5 = b
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Maths Pastpeper MC Q發問:
05#46 (sin^2)1+(sin^2)3+(sin^2)5+......+(sin^2)87+(sin^2)89= A. 22 B. 22.5 C. 44.5 D. 45 can anyone give me a full explanation? 04#54 The mean deviation of the four numbers x - 8, x - 2, x + 3 and x + 7 is A. x . B. 0 C. 5 D. 5.6
最佳解答:
mean deviation out syl (sin^2)1+(sin^2)3+(sin^2)5+......+(sin^2)87+(sin^2)89= (sin^2)89 = (cos^2)1 (sin^2)1 + (cos^2)1 = 1 ----- (a) 一路計就會計到22個好似(a) 既野 淨低1個 (sin^2)45 (sin^2)45 = 0.5 ans = 22.5 = b
其他解答:
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