Advertisements
Advertisements
प्रश्न
Find the value of `(198 xx 198 - 102 xx 102)/96`
Advertisements
उत्तर
We have,
`(198 xx 198 - 102 xx 102)/96`
= `((198)^2 - (102)^2)/96`
= `((198 + 102)(198 - 102))/96` ...[Using the identity, a2 – b2 = (a – b)(a + b)]
= `(300 xx 96)/96`
= 300
APPEARS IN
संबंधित प्रश्न
Expand: 102 x 98
Expand 4p2 – 25q2
Using suitable identities, evaluate the following.
(729)2 – (271)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x2 – 9
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
25ax2 – 25a
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
y4 – 625
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4 + x2 – y2
Find the value of a, if 8a = 352 – 272
Find the value of `(6.25 xx 6.25 - 1.75 xx 1.75)/(4.5)`
