sin 20 deg times cos 80 deg - cos 20 deg times sin 80 deg Find the exact value of the following: cos(120 degrees - 45 degrees) What is the exact value of sin 45 degrees using the half-angle formula? Find the value of sin 255 degrees. If sin\ \theta = -\frac{5}{13} and \...
What is the exact value of \sin \left( \dfrac{13\pi}{8} \right)? Find the exact value of the expression cos 30 degrees + sin 45 degrees Using exact values, find the value of: sin 2A + tan (3A/2) - cos A + sec (A+15)...
Find the exact value of sin ^{-1} (\frac{\sqrt{3{2}) and cos ^{-1} (\frac{\sqrt{3{2}). Find the exact value of \sin 75^{\circ} (a) \sqrt{6}+\sqrt{2} (b) \sqrt{6}-\sqrt{2} (c) V6+\sqrt{2/4} (d) \sqrt{6}+3\sqrt{2/4} (e) \sqrt{6}+\sqrt{2/2} ...
Since the tangent function is the opposite side length of a right triangle divided by its adjacent side length, when we have an arctangent value what we really have is the opposite and adjacent side lengths of a right triangle. Answer and Explanation: We can create two...
In mathematics, the function is classified as an odd and even function. The even function is the function that does not change when it reflects about the y-axis. That implies f(−x)=f(x). The cosine function is one of the even functions. So, it have the property: ...
Find the exact value of the expression: \sin 310^o \csc(-50^o) Fill in the blank.\A.\ \cos(49^\circ) = \sin\ \rule{1cm}{.1mm}\B.\ \tan(29^\circ) = \cot\ \rule{1cm}{.1mm}\ The exact value of \sin 255^{\circ} is A. \frac{(-\sqrt 3-1)}{2\sqrt 2} B. \...
Answer to: Determine the value of cot (495 degrees). By signing up, you'll get thousands of step-by-step solutions to your homework questions. You...
We can find the exact value of a trigonometric function using the unit circle if and only if we have an exact angle. If the function is sine or cosine, we will obtain the value automatically from the unit circle; otherwise, we must perform some additional operations....
One notable relationship between the sine and cosine functions is that, suppose we have {eq}\cos(\theta) {/eq}, a phase shift of {eq}90^{\circ} {/eq} of the angle {eq}\theta {/eq} would give an equivalent sine value. Showing this mathematically, $$\cos(\theta + 90^{\circ})...
Compute for the value of cos(A). The Cosine of an Angle: The cosine of an angle in a right-angled triangle can be defined as the ratio of its adjacent side and the hypotenuse of the given angle. In this problem, we should find the unknown side using the Pythagoras theorem and then ...