Advertisements
Advertisements
प्रश्न
Find the following squares by suing the identities.
`(2/3 m + 3/4 n)^2`
Advertisements
उत्तर
`(2/3 m + 3/4 n)^2` = `(2/3 m)^2 + 2(2/3 m)(3/2 n)+ (3/2 n)^2` [(a + b)2 = a2 + 2ab + b2]
= `4/9 m^2 + 2mn + 9/4 n^2`
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Use a suitable identity to get the following products.
`(3a - 1/2)(3a - 1/2)`
Which of the options given below is the square of the binomial `(8-1/"x")`?
Use an expansion formula to find the value.
(97)2
Use the formula to find the value.
54 × 46
Expand:
(2a – 3b)2
Use a formula to multiply of (4z – 5y)(4z + 5y)
Simplify: (a + b)2 + (a – b)2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2ax + 1
The area of a circle is given by the expression πx2 + 6πx + 9π. Find the radius of the circle.
If a + b = 25 and a2 + b2 = 225, then find ab.
