Answer:

Step-by-step explanation:
Given
The question is illustrated with the attached image
Required
Find 
To do this, we use sine formula
i.e.

So, we have:


Take arc sin


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Answer:
x^2 = 25 x = 5, -5
2x^2 = 98 x = 7, -7
x^2 + 64 = 0 x = 8i, -8i
9x^2 - 16 = 0 x = 4/3, -4/3
x^2 + 9 = 25 x = 4, -4
(x-2)^2 = 25 x = 7, -3
(x-2)^2 +9 = 25 x = 6, -2
4(x-2)^2 +9 = 25 x = 4, 0