The numeral in the units position of `211^(870) + 146^(127) xx 3^(424)` is

What is the value unit digit of 2^(47) xx 3^(23) ?

The unit's digit of 3^(1001)xx7^(1002)xx13^(1003)

Find the unit digit of 3^6 xx 4^7 xx 6^3 xx 7^4 xx 8^2 xx 9^5 .

If n be positive integer , show that the algebraic sum of the numerical coefficients in the expansion of the (3x-2y)^(n) is 1 .

Multiply both the numerator and denominator of a positive, proper fraction by 3(1)/(2) .

The approximate production of Na_(2)CO_(3) per month is 4.24 xx 10^(8) gm, while that of methyl alcohol is 3.2 xx 10^(8) gm . Which is produced more in terms of moles?

If the volume and surface area of a sphere are numerically the same, then its radius is (a) 1 unit (b) 2 units (c) 3 units (d) 4 units