Advertisements
Advertisements
प्रश्न
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
9.8 x 10.2
योग
Advertisements
उत्तर
9.8 x 10.2 = (10−0.2) (10+0.2)
= (10)2 − (0.2)2
= 100 − 0.04
= 99.96
shaalaa.com
Product of Sum and Difference of Two Terms
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Evaluate : (2a−b) (2a+b) (4a2+b2)
Evaluate : (3−2x) (3+2x) (9+4x2)
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
21 x 19
Evaluate: (6 – xy) (6 + xy)
Evaluate : `(7"x"+2/3"y")(7"x"-2/3"y")`
Evaluate : `("a"/(2"b")+(2"b")/"a")("a"/(2"b")-(2"b")/"a")`
Evaluate : (a + bc) (a − bc) (a2 + b2c2)
Evaluate: (m + 3) (m − 3) (m2 + 9)
Evaluate: (3x + 4y) (3x − 4y) (9x2 + 16y2)
Evaluate: (a + bc) (a − bc) (a2 + b2c2)
