Two point charges (q1 = -2.2?C and q2 = 7.7 ?C) are fixed along the x-axis, sepa

Question

Two point charges (q1 = -2.2?C and q2 = 7.7 ?C) are fixed along the x-axis, separated by a distance d = 6.7 cm. Point P is located at (x,y) = (d,d).
What is Ex(P), the value of the x-component of the electric field produced by q1 and q2 at point P?
i got it which is -1559446.9 N/C .
What is Ey(P), the value of the y-component of the electric field produced by q1 and q2 at point P?
i got it which is 13789390.31 N/C
A third point charge q3 = 3.5 ?C is now positioned along the y-axis at a distance d = 6.7 cm from q1 as shown.
What is Ex(P), the x-component of the field produced by all 3 charges at point P?

Explanation / Answer

wht those ? marks denote....is it Mu or sumthng else.?? Thanks :)

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