You can quickly know the answer using this solve similar triangles calculator: In the solve similar triangles calculator, the triangle formed by the person and its shadow is the first triangle. As the person forms a 90-degree angle with the floor, and we know two of the triangle sides, ...
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Similar triangles to a Pythagorean triple will themselves be triples. So we can multiply all the values of our previous example by 2 to get a triangle of (6, 8, 10). 6² + 8² = c² 36 + 64 = c² 100 = c² Multiplying any Pythagorean triple by any positive integer (as...
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39∘05;140∘95 Explanation: Use calculator: sin x = 0.63 --> arc x=39∘05 Unit circle gives another arc x that has the same sin ... What is the value of cos(2π+x) if sinx=0.3 ? https://socratic.org/questions/what-is-the-value-of-cos-2pi-x-if-sin-x-0-3 ±0.95...
solving without a calculator: 2-4*x*arctan(x) = 0. https://math.stackexchange.com/questions/580291/solving-without-a-calculator-2-4xarctanx-0 Given f(x)=arctan(x), we have that f′(x)=1+x21=(1+x2)−1 Hence the second derivative is f′′(x)=−(1+x2)−2⋅2x=(1+...
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