SSLC (English Medium) कक्षा ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Can you get a pure surd when you find the difference of two surds Justify answer with an example

Can you get a pure surd when you find the product of two surds Justify answer with an example.

Can you get a pure surd when you find the quotient of two surds Justify answer with an example

Can you get a rational number when you compute the sum of two surds Justify answer with an example

Can you get a rational number when you compute the difference of two surds Justify answer with an example

Can you get a rational number when you compute the product of two surds Justify answer with an example

Can you get a rational number when you compute the quotient of two surds Justify answer with an example

Find the odd one out of the following.

If `sqrt(80) = "k"sqrt(5)`, then k = 

Expand the following:

(2x + 3y + 4z)² 

Expand the following:

(−p + 2q + 3r)²

Expand the following:

(2p + 3)(2p – 4)(2p – 5)

Expand the following:

(3a + 1) (3a – 2) (3a + 4)

Using algebraic identity, find the coefficients of x², x and constant term without actual expansion

(x + 5)(x + 6)(x + 7)

Using algebraic identity, find the coefficients of x², x and constant term without actual expansion

(2x + 3)(2x – 5)(2x – 6)

Evaluate the following by using identities:

98³

Evaluate the following by using identities:

1001³

If (x + y + z) = 9 and (xy + yz + zx) = 26, then find the value of x² + y² + z² 

Simplify: (2a + 3b + 4c) (4a² + 9b² + 16c² – 6ab – 12bc – 8ca)

Simplify: (x – 2y + 3z) (x² + 4y² + 9z² + 2xy + 6yz – 3xz)