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2022年1月25日 · The best property to use when solving 13 × 1 is the Identity Property, which states that any number multiplied by 1 remains unchanged. Therefore, 13 × 1 = 13 . Other properties, like Commutative, Distributive, and Zero, do not apply in this case.

f(x)=x^3 ; prove\:\tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) \frac{d}{dx}(\frac{3x+9}{2-x}) (\sin^2(\theta))' \sin(120) \lim _{x\to 0}(x\ln (x)) \int e^x\cos (x)dx \int_{0}^{\pi}\sin(x)dx

The largest angle is 115∘ Explanation: The total sum of the angles in a triangle is 180 so (8x−5)+2x+(3x−10)= 180 ... \left. \begin {cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end {cases} \right.

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