Question

. If a b = 4 5 then
(a) a + 4 b - 5 = a - 4 b + 5
(b) a + 4 b + 5 = a - 4 b - 5
(c) a - 4 b + 5 = a + 4 b - 5
(d) none of these

Answer 1

a=36,b=5/4 and then
(a) a+4b-5=a-4b+5 then
36=36. so a option is correct

Answer 2

Answer:

your answer is:

(a), (b), (c) is correct but opt. (d) is incorrect

Step-by-step explanation:

in opt. (a) the value of a is 36, b is 5/4

in opt. (b) the value of a is -36, b is -5/4

in opt. (c) the value of a is 36, b is 5/4 again

therefore as the question changes the value of a,b will definately change hence opt. (d) is incorrect which says none of the above is correct.

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