Advertisements
Advertisements
प्रश्न
The two adjacent sides of a rectangle are 2x2 – 5xy + 3z2 and 4xy – x2 – z2. Find the perimeter and the degree of the expression
उत्तर
Let the two adjacent sides of the rectangle as
l = 2x2 – 5xy + 3z2 and b = 4xy – x2y + 3z2
Perimeter of the rectangle
= 2(l + b) = 2(2x2 – 5xy + 3z2 + 4xy – x2 – z2)
= 4x2 – 10xy + 6z2 + 8xy – 2x2 – 2z2
= 4x2 – 2x2 – 10xy + 8xy + 6z2 – 2z2
= x2(4 – 2) + xy(– 10 + 8) + z2(6 – 2z2)
Perimeter = 2x2 – 2xy + 4z2
Degree of the expression is 2.
APPEARS IN
संबंधित प्रश्न
The degree of m2n and mn2 are equal
The degree of the expression −4x2 yz is −4
Find the degree of the following terms.
12pq2r2
Find the degree of the following expression.
3x2 + 2x + 1
Find the degree of the following expression.
5 – 9y + 15y2 – 6y3
Find the degree of the following expression.
u5 + u4v + u3v2 + u2v3 + uv4
Simplify and find the degree of the following expression.
9a4 – 6a3 – 6a4 – 3a2 + 7a3 + 5a2
The degree of 6x7 – 7x3 + 4 is
Identify the degree of the expression, 2a3bc + 3a3b + 3a3c – 2a2b2c2
Simplify and find the degree of 6x2 + 1 – [8x – {3x2 – 7 – (4x2 – 2x + 5x + 9)}]