Advertisements
Advertisements
Question
If a = − 10, evaluate:
`1/5xx"a"^2`
Sum
Advertisements
Solution
`1/5xx"a"^2`
= `1/5xx("a"xx"a")`
= `1/5xx(-10)xx(-10)`
= `1/5xx100`
= 20
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
If p = −2, find the value of 4p + 7.
If a = 2, b = −2, find the value of a2 + b2.
Simplify the expression and find the value if x is equal to 2:
3 (x + 2) + 5x - 7
Simplify the expression and find the value if x is equal to 2.
6x + 5 (x − 2)
Simplify this expression and find its value if x = 3, a = −1, b = −2.
2a - 2b - 4 - 5 + a
If x = 4, evaluate:
`"x"^2/2`
If a = 5 and b = 6, evaluate:
6a2b
If x = 5 and y = 4, evaluate:
8xy
If x = 2 and y = 10, evaluate:
5y2
The wages ₹ W of a man earning ₹ x per hour for t hours are given by the formula W = xt. Find his wages for working 40 hours at a rate of ₹ 39.45 per hour.
