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Prove that sin (x + Y) sin( x -Y)= sin x²-sin y² |
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Answer» In physics, a force is any INTERACTION that, when unopposed, will change the motion of an OBJECT. A force can cause an object with mass to change its VELOCITY, i.e., to accelerate. Force can also be described intuitively as a PUSH or a pull. A force has both magnitude and direction, making it a VECTOR quantityStep-by-step explanation: |
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