(-7)-(-3)

smplify (7+sqrt(3))/(7-sqrt(3))+(7-sqrt(3))/(7+sqrt(3))

(sqrt(7)+sqrt(3))/(sqrt(7)-sqrt(3))-(sqrt(7)-sqrt(3))/(sqrt(7)+sqrt(3))

((-3)/7)^7xx((-3)/7)^6xx((-3)/7)^-14 =

Simplify and express each of the following in exponential form: [(3/7)^(4)xx(3/7)^(5)]-:(3/7)^(7)

1/(sqrt(7)+sqrt(3))\times (sqrt(7)-sqrt(3))/(sqrt(7)-sqrt(3))

Show that (sqrt(7) + isqrt(3)) / (sqrt(7) - isqrt(3)) + (sqrt(7) - isqrt(3)) / (sqrt(7) + isqrt(3)) , is real.

7^(log_(3)5)+3^(log_(5)7)-5^(log_(3)7)-7^(log_(5)3)

7 + |-3| = ?

In the following series of numbers, find out how many times 1, 3 and 7 have appeared together, 7 being in the middle and 1 and 3 on either side of 7 . 2 9 7 3 1 7 3 7 7 1 3 3 1 7 3 8 5 7 1 3 7 7 1 7 3 9 0 6

In the following number series, how many times three numbers 3, 7, and 8 appear together in such a way, that the prime number comes in the middle and rest of the two numbers are arranged on either sides? "8 3 7 8 7 3 2 7 8 3 5 3 6 8 7 5 3 2 71 3 7 8 7 3 3 7 8 8 7 3 7 "