00:01
Given, given x of t equal to sine 2t, sine 2t, comma y of t equal to t plus sine 2t.
00:20
That imply y of t equal to t plus x.
00:30
X equal to sine 2t.
00:35
X equal to sine 2t.
00:37
That imply t equal to 1 by 2 sine inverse of x.
00:46
Therefore, y of x equal to 1 by 2 sine inverse x plus x.
00:59
Where x belongs to open interval minus 1 comma 1.
01:06
That imply dy by dx equal to 1 by 2 into 1 by square root of 1 minus x square plus 1 plus 1.
01:25
Dy by dx equal to 1 by 2 into x by 1 minus x square to the power 3 by.
01:41
Equating, equating for zeros.
01:51
Equating for zeros.
01:56
Equating for zeros.
01:58
Dy by dx equal to 0 comma 1 by 2 into 1 by square root of 1 minus x square plus 1 equal to 0.
02:15
That imply 1 minus x square equal to 1 by 4.
02:23
That imply x equal to plus minus square root of 3 by 2.
02:31
And, dy by dx equal to 0 equal to x by 2 into 1 minus x square to the power 3 by 2 equal to 0.
02:51
Also, also at x equal to plus minus 1 comma dy by dx equal to...