Simplify 2√7- 14/√7+7/√21
...Simplify 2√7- 14/√7+7/√21
√2121
7√2121
√213
3√21
Correct answer is C
2√7- 14/√7 +7/√21
L.C.M is √21
√21∗2√7−√3∗14+7√21
=2∗7√3−14√3+7√21
= 14√3−14√3+7√21
=7√21
or
7×√21√21×√21
= 7×√2121 or √213
If y = (1 - 2x)3, find the value of dy/dx at x = -1 ...
If line p = 5x + 3 is parallel to line p = wx + 5. Find the value of w....
Find the value of x in the diagram above...
Simplify \(\frac {25^{\frac{2}{3}} \div 25^{\frac{1}{6}}} {(\frac{1}{5})^{\frac{7}{6}} \...
If x : y = 3 : 2 and y : z = 5 : 4, find the value of x in the ratio x : y : z ...
If (23)m(34)n=256729, find the values of m and n....
If 5x + 3y=4 and 5x-3y= 2, what is the value of (25x2 -9y2)?...