1 = x^2
+/- sqrt(1) = sqrt(x^2)
{sqrt(1) = 1} {sqrt(x^2) = x}
+/- 1 = x
Final answer: x= 1 or -1
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If T2 = 78, then T = 78(1/2) or the square root of 78, or about 8.83.
It then equals 1/81
8 1/3 = ab^-1, 1.8 =ab^2
1 over 5^2. which is 1/25
2sinx+1 equals 0