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Definition of a Determinant

Find P -1, ...

Question

Find $P^{- 1}$ , if it exists, given $P = [\begin{matrix} 10 & - 2 - 5 & 1 \end{matrix}]$ .

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Solution

Here,
$| P |$ = $10 - 10 = 0$
So, P is a singular matrix.
Hence, inverse does not exist.

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Similar questions

1 \frac{1}{2} : 3 \frac{1}{2}

5 \frac{1}{4} : 7 \frac{1}{2}

, then find the ratio of P:R. If the ratio of P : R is 3: 10 then enter

1

and if false then enter

0

.

p = 51, q = 17

r = - 3

, then find the value of

p \div q r

.

1 \frac{1}{2} : 3 \frac{1}{2}

5 \frac{1}{4} : 7 \frac{1}{2}

, then P : Q: R is 3: 7: 10.

If true then enter

1

and if false then enter

0

p

be a natural number.
Statement

1

: there exists a

p

p^{2} - 1

is a prime number
Statement

2

p

p^{2} - 1

has odd number of factors
Statement

3

p

p (p + 1) (p + 2) (p + 3) + 1

has even number of factors

Q. If the sum of the coefficients in the expansion of

(p^{2} x^{2} - 2 p x + 1)^{51}

p =

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