Taking
and
find :
(a) the rational number which when added to x gives y.
(b) the rational number which subtracted from y gives z.
(c) the rational number which when added to z gives us x.
(d) the rational number which when multiplied by y to get x.
(e) the reciprocal of x + y.
(f) the sum of reciprocals of x and y.
(g) (x ÷ y) × z
(h) (x – y) + z
(i) x + (y + z)
(j) x ÷ (y ÷ z)
(k) x – (y + z)
(a) Let’s the rational number is p.
⇒ x + p = y
⇒ p = y – x
⇒ p = ![]()
⇒ p = ![]()
⇒ p = ![]()
⇒ p = ![]()
(b) Let’s the rational number is p.
⇒ y – p = z
⇒ p = y – z
⇒ p = ![]()
⇒ p = ![]()
⇒ p = ![]()
(c) ⇒ z + p = x
⇒ p = x – z
⇒ p = ![]()
⇒ p = ![]()
⇒ p = ![]()
⇒ p = ![]()
⇒ p × y = x
⇒ p = ![]()
⇒ p =
= ![]()
⇒ p = ![]()
(e) ⇒ The reciprocal of x + y = ![]()
⇒ ![]()
⇒
= ![]()
(f) ⇒ The reciprocals of x and y are = ![]()
⇒ The sum of reciprocals of x and y are = ![]()
⇒ ![]()
⇒
= ![]()
⇒
= ![]()
⇒ ![]()
(g) (
) × ![]()
⇒
× ![]()
⇒ ![]()
⇒ ![]()
(h) (
-
) + ![]()
⇒ (
) + ![]()
⇒ ![]()
⇒ ![]()
⇒ ![]()
(i) ![]()
⇒
+ (
)
⇒
+ (
)
⇒ ![]()
⇒ ![]()
(j) ![]()
⇒
÷ (
)
⇒
÷ ![]()
⇒ ![]()
⇒ ![]()
(k) ![]()
⇒
- (
)
⇒ ![]()
⇒
= ![]()
⇒ ![]()
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