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If x =3 and y=1, then find the values of...

If x =3 and y=1, then find the values of
`(i) 3x-2y" "(ii) (22)/(3)x^(2)-(7)/(2)y^(2)`

Text Solution

Verified by Experts

The correct Answer is:
(i) `7`
(ii) `62.5`
x=3, y=1
(i) `3x-2y=3xx3 2xx1=9-2=7`
(ii) `(22)/(3)x^(2)-(7)/(2)y^(2)=(22)/(3)xx(3)^(2)-(7)/(2)(1)^(2)`
`=(22)/(3)xx9-(7)/(2)xx1=66-(7)/(2)`
`66--3.5=62.5`
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