Question

Q 7 The smallest natural number when added to difference of squares of

17 and 13 gives a perfect square is

a) 5 b) 1

c) 4 d) 21​

Answer 1

Answer:option B is the answer

Step-by-step explanation:

17²-13²=289-169=120

Then we add 1 to get the perfect square as 121=11×11....

Answer 2

Answer:

b) 1

Step-by-step explanation:

17 square = 17 x 17 = 289

13 square = 13 x 13 = 169

= 289 - 160 = 120

so answer = 120 + 1 = 121

121 is the square of 11

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