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a3 – b3 = 117 and a – b = 3 ⇒ a3 – b3 = (a – b) (a2 + b2 +ab) ⇒ 117 = 3 (a2 + b2 +ab) ⇒ 39 = a2 + b2 +ab ⇒ a2 + b2 = 39 – ab we Know that (a-b)² = a2 +b² - 2ab = (a-b)² = 39 – ab – 2ab = (a-b)² = 39 – 3ab 9 = 39 – 3ab = ab = 10 Now use (a+b)² = a2 + b2 + 2ab (a+b)² = 39 – ab + 2ab (a+b)² = 39 + ab = 39 + 10 (a+b)² = 49 = a + b = ±7
In the given question a sentence with a blank is given. From the options choose the idiom which will fit perfectly in the blank and make the sentence c...
Usual practices associated with a particular society, place, or set of circumstances.
Select the correct meaning of the given idiom.
Broken reed-
I remember him saying that a juvenile judge without the support of a social worker would be like a fly out of basket .
Paint something with a broad brush
Directions : In the following question, three statements are given with an idiom highlighted in bold. You have to select the answer choice that has the...
A Slap on the Wrist
Fill in the blanks with the correct idiom.
Despite the unexpected rain, the outdoor picnic turned out to be a huge success thanks to everyone'...
They’re scattered
P- and are not the
Q- traditional Christmas lights
R- throughout the old town
Given below are sentences with an idiom given in bold. Replace the idiom from the four options provided to make the sentence contextually meaningful an...
