verify the property X × Y = Y× X for X = 7/9 ,Y = 2/21 Please give your Answer Step by Step
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verify the property X × Y = Y× X for X = 7/9 ,Y = 2/21 Please give your Answer Step by Step
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Verified answer
Answer:
xy=yx
(7/9)(2/21)=(2/21)(7/9)
1=1
hence verified
Step-by-step explanation:
We have, x x y = − 1 3 × ( 2 7 ) −13×(27) = − 2 21 −221 y x x = 2 7 × ( − 1 3 ) 27×(−13) = − 2 21 −221
(ii) We have, x x y = − 3 5 × ( − 11 3 ) −35×(−113) = 33 65 3365 y x x = − 11 13 × ( − 3 5 ) −1113×(−35) = 33 65 3365
(iii) We have, x x y = 2 × ( 7 − 8 ) 2×(7−8) = − 14 8 −148 = − 7 4 −74 y x x = 7 − 8 × 2 7−8×2 = − 14 8 = − 7 4 −148=−74
(iv) We have, x x y = 0 × ( − 15 78 ) 0×(−1578) = 0 y x x = − 15 8 × 0 −158×0 = 0