Question

by what number should be (-2/3)^-1 be divided so that the quotient is (15/6)^-1​

Answer 1

Let (−15)

−1

be divided by x to get quotient (−15)

−1

So,

x

(−15)

−1

=(−15)

−1

⇒

(−15)

−1

(−15)

−1

=x

⇒x=(−15)

−1+1

[∵a

m

÷a

n

=(a)

m−n

]

⇒x=(−15)

0

=1 [∵a

0

=1]