Is 
?
The answer is no. Correct answer is 
See the following example how this concept is applied in H2 math
Example 1
Differentiate 
with respect to x
Therefore
Ans: -1 if sin x > 0, 1 if sin x < 0
Example 2
Square root of x squared
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Is ?
The answer is no. Correct answer is
See the following example how this concept is applied in H2 math
Example 1
Differentiate with respect to x
Therefore
Ans: -1 if sin x > 0, 1 if sin x < 0
Example 2
JC A Level H2 Math Tuition Singapore 
One thought on “Square root of x squared”