Do not use a calculator.相关知识点: 试题来源: 解析 sin 2x= (24)(25), cos 2x=- 7(25), tan 2x=- (24)7 本题考查动名词作宾语。consider 后面需要接动名词作宾语,表示“考虑做某事”。因此,正确答案为 C 选项 sending,表示“考虑让他们的孩子出国留学”。反馈 收藏 ...
Find the exact values of the sine, cosine, and tangent of the angle. 15 o sin ( 15 0 ) = cos ( 15 o ) = tan ( 15 o ) = Find the exact values of the sine, cosine, and tangent of the angle (17\pi/12). Find the exact values of the sine, cosine, and ...
In the problem, sin theta and cos theta are given. Find the exact value of the indicated trigonometric function. sin theta = sqrt(7)/4, cos theta = 3/4. Find tan theta. Find the exact values for sin theta, cos theta, and tan theta. ...
Find the exact value of: {eq}\sin(135 ^\circ) {/eq}.Relationship Between Sine and CosineOne 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} woul...
sin(x - y) = sinxcosy - cosxsiny You are given your values. Just plug them in. Also, you will need to find sinx = √(1 - cos2x) = √[1 - (24/25)2] Upvote • 1 Downvote Comment • 1 Michael J. Why am I getting a negative vote for this answer. Report 01/1...
–15. Pythagorean Theorem Replace x with 8 and y with –15. Use the Pythagorean Theorem to find r. Evaluate Trigonometric Functions Given a Point Now use x = 8, y = –15, and r = 17 to write the ratios. Simplify. Answer: Find the exact values of the six trigonometric functions of...
In trigonometry, we have a bunch of summation identities that work to find the exact value of the trigonometric function containing the sum of two angles. The general identities are given by: sin(x+y)=sinxcosy+cosxsinysin(x−y)=sinxcosy−c...
cos 36°:The cosine of 36 degrees can be calculated by using a pentagon. Seecos36° at CutTheKnotwhere it is shown that Putting these values on a right triangle and solving for the unknown side, we can conclude: sin 18°:Now, the sine of 18 degrees comes from the sine of half of...
The value of tan 90 degrees is undefined. The tangent of an angle is equal to the ratio of sine and cosine of the same angle. Learn how to derive the exact value of tan 90 at BYJU’S.
Question: Find the exact values of the six trigonometric ratios of the angle θ in the triangle. Find the exact values of the six trigonometric ratios of the angleθin the triangle. There are 3 steps to solve this one.