Find cos 2theta if sin theta = 1/5. Assume that theta is greater than or equal to 0 and less than or equal to 2 . Find \theta for 0^{\circ} \leq \theta less than 360^{\circ}. \tan\theta = -2.907,\; \cos\theta greater than 0 If sin (theta) = 8 /...
Answer to: sin 30 degrees is equal to which of the following: a) cos 30 degrees b) sin 60 degrees c) tan 60 degrees d) cos 60 degrees By...
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At the point (0,-1) we can say \sin(270)=-1 as the angle \theta is 270^o . Continuing the point around the unit circle back to the coordinate (1,0) , we get \sin(360)=0 as \theta has made a full turn back to the positive x axis. \sin(\theta) is as periodic function...
The correct Answer is:C Show More | ShareSave Answer Step by step video, text & image solution for 24 sin theta=7 cos theta का महत्व मान है by Maths experts to help you in doubts & scoring excellent marks in Class 11 exams.Updated on:21/07/2023Class...
The sine function of an angle is equal to the opposing side's length divided by the hypotenuse side's length, and the formula is as follows: \[sin\theta =\frac{\textrm{opposite side}}{\textrm{hypotenuse side}}\] The sides of a triangle are proportional to the sine of the opposite an...
Thus, the value of Sin 30 degrees is equal to 12(half) or 0.5. Just like the way we derived the value of sin 30 degrees, we can derive the value of sin degrees like 0°, 30°, 45°, 60°, 90°,180°, 270° and 360°. ...
【解析】 $$ \sin(180^{\circ}+ \theta)\cos(360^{\circ}- \theta)\tan(180^{\circ}- \theta) \\ = \sin(\pi + \theta)\cos(2 \pi - \theta)\tan(\pi - \theta) \\ =- \sin \theta \cdot \cos \theta \cdot(- \tan \theta) \\ = \sin \theta \cdot \cos \theta \...
The side B is regarded as a base (adjacent) not only because the triangle rests on it, but also because it contains both angles, namely the 90-degree angle and the unknown angle thetaϴ. Side A is the perpendicular (opposite) since it is the sole side next to the base that does ...
Now, a bit of math. A circle is 360 degrees. We have 12 labels on our clock, so want to place the numbers every 30 degrees (360 / 12). In math-land, a circle begins at 3 o’clock, so noon is actuallyminus 90 degreesfrom that, which is 270 degrees (360 - 90). ...