hello I far as I know the value of square root can't be negative number. So the graph can't be drawn on 4th quadrant, isn't it? Besides square root of x is considered as toolkit fuction, the frequent used function.
by taking different x values you will get Y values, plot it . These are common graphs student must know the shapes in A levels, these detailed graphs already done in your O level or IGCSE maths. hope it is helpful.
The square root is not a function, but the symbol you used which is called the radical sign is called the principal square root, which is defined as only the unique nonnegative square root √x² := |x|
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at 13:41 how come the x values werent excluding the -1 and 2 because the signs used werent greater/less than or equal to?
-1 and 2 are the limits . fx value at -1 is -4 which is not included in f value.
hello
I far as I know the value of square root can't be negative number. So the graph can't be drawn on 4th quadrant, isn't it?
Besides square root of x is considered as toolkit fuction, the frequent used function.
hes referring to a square number, for example 3^2 and -3^2 will both give u 9, but if u input a -ve # into root(x) it wont work
you are correct √x² := |x|
thank you , it was helpful
sir how do you got to know that the graph will be like this can you explain it in detail
because i am not getting that how you drew the graph
by taking different x values you will get Y values, plot it . These are common graphs student must know the shapes in A levels, these detailed graphs already done in your O level or IGCSE maths. hope it is helpful.
The square root is not a function, but the symbol you used which is called the radical sign is called the principal square root, which is defined as only the unique nonnegative square root √x² := |x|
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