Advertisements
Advertisements
प्रश्न
If `"p" + (1)/"p" = 6`; find : `"p"^2 + (1)/"p"^2`
योग
Advertisements
उत्तर
`("p" + (1)/"p")^2`
= `"p"^2 + (1)/"p"^2 + 2`
⇒ 36 = `"p"^2 + (1)/"p"^2 + 2`
⇒ `"p"^2 + (1)/"p"^2`
= 36 - 2
= 34.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Use suitable identity to find the following product:
`(y^2+3/2)(y^2-3/2)`
Factorise the following using appropriate identity:
`x^2 - y^2/100`
Expand the following, using suitable identity:
(3a – 7b – c)2
Verify:
x3 – y3 = (x – y) (x2 + xy + y2)
Evaluate following using identities:
991 ☓ 1009
If a + b = 10 and ab = 21, find the value of a3 + b3
Find the following product:
(x2 − 1) (x4 + x2 + 1)
If \[x^4 + \frac{1}{x^4} = 194,\] then \[x^3 + \frac{1}{x^3} =\]
Expand the following:
(x - 5) (x - 4)
If 2x + 3y = 10 and xy = 5; find the value of 4x2 + 9y2
