![Question Video: Using a Calculator to Evaluate an Expression Involving Values of Trigonometric Functions | Nagwa Question Video: Using a Calculator to Evaluate an Expression Involving Values of Trigonometric Functions | Nagwa](https://media.nagwa.com/513173829639/en/thumbnail_l.jpeg)
Question Video: Using a Calculator to Evaluate an Expression Involving Values of Trigonometric Functions | Nagwa
![Find the exact value of the expression. cos (- {25 pi} / 4) - tan (- {25 pi} / 4) | Homework.Study.com Find the exact value of the expression. cos (- {25 pi} / 4) - tan (- {25 pi} / 4) | Homework.Study.com](https://homework.study.com/cimages/multimages/16/mineangle2373026946765339303.png)
Find the exact value of the expression. cos (- {25 pi} / 4) - tan (- {25 pi} / 4) | Homework.Study.com
![trigonometry - Find the measure of the smallest positive angle $\theta$ in degrees for which $\tan\theta=\frac{\cos25^\circ+\cos85^\circ}{\sin25^\circ-\sin85^\circ}$ - Mathematics Stack Exchange trigonometry - Find the measure of the smallest positive angle $\theta$ in degrees for which $\tan\theta=\frac{\cos25^\circ+\cos85^\circ}{\sin25^\circ-\sin85^\circ}$ - Mathematics Stack Exchange](https://i.stack.imgur.com/ojrKX.png)
trigonometry - Find the measure of the smallest positive angle $\theta$ in degrees for which $\tan\theta=\frac{\cos25^\circ+\cos85^\circ}{\sin25^\circ-\sin85^\circ}$ - Mathematics Stack Exchange
![If cos 25 degrees + sin 25 degrees = k, then cos 20 degrees is equal to - Maths - Trigonometric Functions - 12700435 | Meritnation.com If cos 25 degrees + sin 25 degrees = k, then cos 20 degrees is equal to - Maths - Trigonometric Functions - 12700435 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_361d4472dc7f0c6e80c9cd61fa5ba933.png)
If cos 25 degrees + sin 25 degrees = k, then cos 20 degrees is equal to - Maths - Trigonometric Functions - 12700435 | Meritnation.com
![Unit 8 Trigonometric Functions Radian and degree measure Unit Circle Right Triangles Trigonometric functions Graphs of sine and cosine Graphs of other. - ppt download Unit 8 Trigonometric Functions Radian and degree measure Unit Circle Right Triangles Trigonometric functions Graphs of sine and cosine Graphs of other. - ppt download](https://images.slideplayer.com/22/6501723/slides/slide_8.jpg)
Unit 8 Trigonometric Functions Radian and degree measure Unit Circle Right Triangles Trigonometric functions Graphs of sine and cosine Graphs of other. - ppt download
![The distance between the points (a cos 25°,0) and (0, a cos 65°) is - YOUR ANSWER SOLUTION Distance between given two points = v(a cos 25° – 0)2 + (0 – The distance between the points (a cos 25°,0) and (0, a cos 65°) is - YOUR ANSWER SOLUTION Distance between given two points = v(a cos 25° – 0)2 + (0 –](https://toppr-doubts-media.s3.amazonaws.com/images/4700975/127014c1-8f46-4879-9af2-7ff31cf8b05b.jpg)
The distance between the points (a cos 25°,0) and (0, a cos 65°) is - YOUR ANSWER SOLUTION Distance between given two points = v(a cos 25° – 0)2 + (0 –
![Without using trigonometric tables, find the value of the following expression:sec 90° θ cosec θ tan 90° θ cot θ + cos2 25° + cos2 65° 3 tan 27° tan 63° Without using trigonometric tables, find the value of the following expression:sec 90° θ cosec θ tan 90° θ cot θ + cos2 25° + cos2 65° 3 tan 27° tan 63°](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1707467/original_123423.png)