milanmk122

Suppose a,b,c,s,t are all integers, a 6=0,a∣b and a∣c . Then a∣(sb+tc) . Use it in a proof of the following: Prove that if a is a non- 0 integer, k∈Z,a∣(4k+3) , and a∣(2k+1) , then a=1 or a=−1 . Suggestion: use proof above and the fact that only divisors of 1 are 1 and -1 . 

Question from conic section...

Find the centre and radius of the circle:-

* 2x sq.+2y sq.-x=0

1. A and B each have a certain number of mangoes. A says to B, "if you give 30 of your mangoes, I will have twice as many as left with you." B replies, "if you give me 10, I will have thrice as many as left with you." How many mangoes does each have?

You and your family are driving to your grandparents home, which is 95 km away

If you drive at an average speed of 85 km/h how long will it take you to get there? 

What is diapedesis?

What is the chemical mix to get water

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