Please help with numbers 5 and 7!
1 answer:
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Answer:
The fifth line contains the error.
Step-by-step explanation:
Line 1 is the equation.
Lines 2, 3, and 4 are correct.
The error is in the 5th line.
The square root of a negative number is not a real number, so if this problem is solved only with real numbers, there is no solution.
If imaginary numbers are allowed, then the last line should read:
Using equivalent angles, the solutions to the equation are given as follows:
Each angle on the second, third and fourth quadrants will have an equivalent on the first quadrant.
In this problem, the equation is:
Applying the inverse relation:
Which is on the third quadrant. The equivalent angle on the fourth quadrant is given as follows:
More can be learned about equivalent angles at brainly.com/question/28025397
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