Mathematics, 30.06.2019 23:30 emmakatemashbu

If d subscript 1 baseline overscript right-arrow endscripts plus d subscript 2 baseline overscript right-arrow endscripts equals 7.0 d subscript 3 baseline overscript right-arrow endscripts, d subscript 1 baseline overscript right-arrow endscripts minus d subscript 2 baseline overscript right-arrow endscripts equals 1.0 d subscript 3 baseline overscript right-arrow endscripts and d overscript right-arrow endscripts subscript 3 baseline equals 2.1 i overscript ̂ endscripts plus 5.0 j overscript ̂ endscripts, then what are (a) the x component of d subscript 1 baseline overscript right-arrow endscripts, (b) the y component of d subscript 1 baseline overscript right-arrow endscripts, (c) the x component of d subscript 2 baseline overscript right-arrow endscripts, and (d) the y component of d subscript 2 baseline overscript right-arrow endscripts?

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If d subscript 1 baseline overscript right-arrow endscripts plus d subscript 2 baseline overscript r...