【错的次数】

#include <bits/stdc++.h>

using namespace std;

const long long MOD = 1e9 + 7;

long long ksm(long long x, long long y)

{

	int t = 1;

	while (y)

	{

		if (y & 1) t = (1LL * t*x) % MOD;

		x = (1LL * x*x) % MOD;

		y >>= 1;

	}

	return t;

}

int main() {

	//freopen("F:\\rush.txt", "r", stdin);

	ios::sync_with_stdio(0), cin.tie(0);

	int T;

	cin >> T;

	while (T--) {

		long long p, q, k;

		cin >> p >> q >> k;

		cout << (ksm(p, k) + ksm(p - 2 * q, k)) % MOD*ksm(2 * ksm(p, k) % MOD, MOD - 2)%MOD << endl;

	}

	return 0;

}