Question
If (a – 2b) = 8 and 2ab = 9, then find the value of (a
+ 2b).Solution
(a – 2b) = 8        Both sides Squaring. (a – 2b)2 = 82 a2+4b2-4ab =64. a2+4b2 =64+4ab …. (2) (a + 2b)2 =a2+4b2+4ab (a + 2b)2 =64 +8ab =64+8×9/2 (a + 2b)2 =100 (a+2b) =10
In the following expression find the missing term:Â Â
Select the option that is related to the third term in the same way as the second term is related to the first term and sixth term is related to fifth ...
Study the given pattern carefully and select the number that can replace the question mark [?] in it.
Select the number from among the given options that can replace the question mark (?) in the following table.
Find the missing letter.
Insert the correct missing number from the choices given below:
Study the given matric carefully and select the number from among the given options that can replace the question mark (?) in it.
What will come in the place of question mark?
Find the missing term :
...
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
 First row: 84, 42, 49
Second row: ...
