Advertisements
Advertisements
प्रश्न
From the formula B = 2a2 – b2, calculate the value of B when a = 3 and b = − 1.
योग
उत्तर
B = 2a2 – b2
Put the values of a = 3 and b = − 1 in above equation
B = 2 × (3)2 – (− 1)2
B = 18 – 1
B = 17
Value of B is = 17
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
If a = 2, b = −2, find the value of a2 + b2.
If a = 2, b = −2, find the value of a2 + ab + b2.
When a = 0, b = −1, find the value of the given expression:
2a + 2b
When a = 0, b = −1, find the value of the given expression:
a2 + ab + 2
If m = – 7, evaluate:
2m3
If y = 5 and z = 2, evaluate:
(5z)3
If m = − 8, evaluate:
2m + 21
If m = − 8, evaluate:
m2 + 9m
If y = − 8, evaluate:
`"y"^3/4`
If m = 9 and n = − 2, evaluate (2n)3
