LAureli 18 Dec 2015, 23:03
In Example 1 on the page, how do you obtain 0.84? Please show calculation for common mortals. Thank you.
3. Graphs of y = a sin(bx + c) and y = a cos(bx + c)
Read other examples, tried substituting
X
In Example 1 on the page, how do you obtain 0.84? Please show calculation for common mortals. Thank you.
Relevant page <a href="/trigonometric-graphs/3-graphs-sin-cos-phase-shift.php">3. Graphs of <span class="noWrap">y = a sin(bx + c)</span> and <span class="noWrap">y = a cos(bx + c)</span></a> What I've done so far Read other examples, tried substituting
Newton 19 Dec 2015, 18:33
Hello L. Aureli
The `0.84` comes from substituting `x = 0` into `y = sin(2x + 1)`, that is `y = sin(0+1) = sin 1.`
Using calculator, `sin 1 = 0.84` (you must be in radians.)
Hope that makes sense.
Regards
X
Hello L. Aureli The `0.84` comes from substituting `x = 0` into `y = sin(2x + 1)`, that is `y = sin(0+1) = sin 1.` Using calculator, `sin 1 = 0.84` (you must be in radians.) Hope that makes sense. Regards
LAureli 20 Dec 2015, 11:41
Doh - I was in degrees and couldn't get 0.84.
Thanks a lot.
X
Doh - I was in degrees and couldn't get 0.84. Thanks a lot.
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