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What is 15 to the power of -2?
17
What is 3 to the 2 power times 5 to the 2 power?
225
Log 225 to the 2 power equals 3.456?
log10(225)2 equals 5.5327625985087111
Give a one-line C expression to test whether a number is a power of 2?
The one line expression is: ((0 != n) && !(n & n-1)) example: int main () { for (int n = 0; n <= 1000001; ++n) { if ((0 != n) && !(n & n-1)) cout << n << " is a power of 2" << endl; } return 0; } will produce: 1 is a power of 2 2 is a power of 2 4 is a power of 2 8 is a power of 2 16 is a power of 2 32 is a power of 2 64 is a power of 2 128 is a power of 2 256 is a power of 2 512 is a power of 2 1024 is a power of 2 2048 is a power of 2 4096 is a power of 2 8192 is a power of 2 16384 is a power of 2 32768 is a power of 2 65536 is a power of 2 131072 is a power of 2 262144 is a power of 2 524288 is a power of 2
How do you simplify 16 times 2 power of n times 10 times 2 to the power of n?
16(2^n)(10)(2^n)=160[2^(2n)]=160(4^n)
