Advertisements
Advertisements
Question
If x = 2, y = 5 and z = 4, find the value of the following:
`(5"x"^4"y"^2"z"^2)/(2"x"^2)`
Advertisements
Solution
`(5"x"^4"y"^2"z"^2)/(2"x"^2)`
= `(5"x"^(4-2)"y"^2"z"^2)/2`
= `(5"x"^2"y"^2"z"^2)/2`
= `(5(2)^2(5)^2(4)^2)/2`
= `(5xx4xx25xx16)/2`
= 5 × 2 × 25 × 16
= 4,000
APPEARS IN
RELATED QUESTIONS
Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.
z ÷ x = ..................
If a = 3, b = 0, c = 2 and d = 1, find the value of a2 + b2 − c2 + d2
Show that the value of x3 – 8x2 + 12x – 5 is zero, when x = 1.
If x = 2, y = 5 and z = 4, find the value of the following:
`"xz"/"yz"`
Simplify:
3x − [5y − {6y + 2 (10y − x)}]
Insert the bracket as indicated:
a + 4b − 4c = a + (...............)
Insert the bracket as indicated:
x2 − y2 + z2 = x2 − (..................)
If x = a2 – bc, y = b2 – ca, and z = c2 – ab; find the value of ax + by + cz
Multiply and then evaluate:
(x – 2y + z) and (x – 3z); when x = − 2, y = − 1 and z = 1.
Simplify:
`12"x"^2-(7"x"-overline(3"x"^2+15))`
