Advertisements
Advertisements
प्रश्न
If x = 3, y = 2 and z = 1; find the value of 3x2 − 5y2
योग
Advertisements
उत्तर
x = 3, y = 2, z = 1
3x2 − 5y2 = 3(3)2 − 5(2)2
= 3 × 9 − 5 × 4
= 27 − 20
= 7
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.
z − a − b = ................
Find the value of 4pq × 2r, when p = 5, q = 3 and r = 1/2
If x = 2, y = 5 and z = 4, find the value of the following:
`"x"/(2"x"^2)`
If x = 2, y = 5 and z = 4, find the value of the following:
`("x"^2"y"^2"z"^2)/"xz"`
Evaluate:
6m – (4m – m)
Simplify:
− (y − x) − (x + y − `overline(2"x"+"y")`)
Simplify:
`5{"a"^2-"a"("a"-overline("a"-2))}`
Fill in the blank:
3m − 2n + 6 = 6 − (............)
If x = 3, y = 2 and z = 1; find the value of 2x – 3y + 4z + 5
Multiply and then evaluate:
(4x + y) and (x – 2y); when x = 2 and y = 1.
