Sin400° = _____ -sin40° sin40° sin(-40)°
1 answer:
Answer:
<em>Sin 400° = Sin 40°</em>
Step-by-step explanation:
We have to find the value of the trigonometric function <em>Sin 400°</em>
Here,
Sin 400° = Sin (360° + 40°)
The picture shown below shows that in 1st quadrant <em>All trigonometric functions( Sin, Cos, Tan, Cosec, Sec, Cot ) </em> are positive.
And <em>Sin(360° + Ф°) = Sin ( Ф°)</em>
= Sin ( 40°)
Therefore, <em>Sin 400° = Sin 40°</em>
You might be interested in
y=−3x+9 slope of this equation is -3 and y-intercept is 9
Plot the y -intercept first which is 9 and mark the points using the slope which is -3. Join the points. So blue line in the graph is y = -3x+9
y=−x−5 slope of this equation is -1 and y intercept is -5
Plot the y -intercept first which is -5 and mark the points using the slope which is -1 . Join the points. So pink line in the graph is y = -x-5
The intersection point of these two lines gives you the solution.
The coordinates of point of intersection (7,-12)
