hp-z2-tower-g9-1024x683-1
数学:已知a3=3/2,s3=9/2,求a1,q
等比数列中,a3=3/2,s3=9/2,求a1及q
等比数列中,a3=3/2,s3=9/2,求a1和q.
定积分∫((sinx)^2 sin2x)|sinx|dx(上限9π/2,下限π/2)
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