Advertisements
Advertisements
प्रश्न
If m - n = 0.9 and mn = 0.36, find:
m2 - n2.
बेरीज
Advertisements
उत्तर
m2 - n2
= (m + n)(m - n)
= (±1.5)(0.9)
= ±1.35.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Evaluate the following using identities:
`(2x+ 1/x)^2`
If a + b = 8 and ab = 6, find the value of a3 + b3
Use the direct method to evaluate the following products :
(y + 5)(y – 3)
Use the direct method to evaluate the following products:
(5a + 16) (3a – 7)
Use the direct method to evaluate :
(xy+4) (xy−4)
Evaluate: (2a + 0.5) (7a − 0.3)
Evaluate: `(2"a"+1/"2a")(2"a"-1/"2a")`
Simplify:
`(x - 1/x)(x^2 + 1 + 1/x^2)`
Simplify:
(x + 2y + 3z)(x2 + 4y2 + 9z2 - 2xy - 6yz - 3zx)
Expand the following:
(–x + 2y – 3z)2
