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Thermochromic is a property of a material, which means that the material will change colour under the stimulus of heat. As the temperature changes, the colour will too.
Superimposition is when two transverse waves come together, and their frequencies cancel each other out. If the waves are completely superimposed, the resultant wave is 0.
2,8,8,1
Simply take B from A i = 10-3=7 j= -3-2=-5 k= 2-5=-3 SO the velocity is (7i-5j-3k)
dy/dx= 6x + 30x^4 - 2/x^2
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