Math, asked by gsshekhawat47, 9 months ago

Plzz solve any tow ​

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Answered by sudhanshisagar017
0

Answer:

15.... a=20

....16.....ans 11...❤

Answered by PrincessAZ
1

Answer:

Q.no . 1

7 x 5 x 3 x 2+ 3  

= 3 (  7 x 5 x 1 + 1)

= 3 ( 36)

=108

It has more than two factors; 3 , 36 , 1 n itself.

therefore,it is a composite no.

Q.no.2. Let a be a positive odd integer and b=4, we apply the division algorithm for a and b=4.

We get a=4q+r, for q greater than or equals to 0, and 0 <or = r < 4

Possible remainders are 0, 1, 2, and 3.

That is , a can be 4q , 4q +1, 4q+2 or 4q+3, where q is the quotient .

However , since a is an odd no. , a cannot be 4q = 2(2q) or 4q +2 = 2(q+1)

since they both r divisible by 2

Therefore any odd positive integer is of the form 4q +1 or 4q+3.

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