HELP ME PLEASE!! Find R and theta with the coordinates (-3,7).

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asked May 9, 2021 112k views

1 Answer

Pulkit Aggarwal · Answer 1 · 2021-05-13T22:54:05+0000

Answer:

Since r is the distance from the origin to (x,y), it is the magnitude r=√x2+y2. Alternatively, from the equation (1), one can calculate directly that x2+y2=r2cos2θ+r2sin2θ=r2(cos2θ+sin2θ)=r2.

Explanation:

HELP ME PLEASE!! Find R and theta with the coordinates (-3,7).

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