Given,∵ A2 = A.A⇒ A2 = By matrix multiplication, we getA2 = ⇒ A2 = ∴ A2 + 2A + 7I = ⇒ A2 + 2A + 7I = ⇒ A2 + 2A + 7I = ⇒ A2 + 2A + 7I = …ans

Q43 of 146 Page 52

If find A² + 2A + 7I

Given,

∵ A² = A.A

⇒ A² =

By matrix multiplication, we get

A² =

⇒ A² =

∴ A² + 2A + 7I =

⇒ A² + 2A + 7I =

⇒ A² + 2A + 7I = …ans

Find the value of a, b, c and d, if

Find the matrix A such that

If and A^–1 = A’, find value of α.

If the matrix is a skew symmetric matrix, find the values of a, b and c.

If find A2 + 2A + 7I