求[in(1+sin.^2(x))-x^2]/sin^4(x);当x趋于0时候的极限如题,求指教
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求[in(1+sin.^2(x))-x^2]/sin^4(x);当x趋于0时候的极限如题,求指教
求[in(1+sin.^2(x))-x^2]/sin^4(x);当x趋于0时候的极限
如题,求指教
求[in(1+sin.^2(x))-x^2]/sin^4(x);当x趋于0时候的极限如题,求指教
是-1/3吗,我不是太确定