![Evaluate each of the following: (a) cos(40^0-theta)-sin(50^0+theta)+(cos^2 40^0+cos^2 50^0)/(sin^2 40^0+sin^2 50^0) (b) (cos70^0)/(sin20^0)+(cos55^0cos e c35^0)/(tan5^0tan25^0tan45^0tan65^0tan85^0) (c) 2((cos58^0)/(sin32^0))-sqrt(3)((cos38^0cos e c52^0 ... Evaluate each of the following: (a) cos(40^0-theta)-sin(50^0+theta)+(cos^2 40^0+cos^2 50^0)/(sin^2 40^0+sin^2 50^0) (b) (cos70^0)/(sin20^0)+(cos55^0cos e c35^0)/(tan5^0tan25^0tan45^0tan65^0tan85^0) (c) 2((cos58^0)/(sin32^0))-sqrt(3)((cos38^0cos e c52^0 ...](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/642566385_web.png)
Evaluate each of the following: (a) cos(40^0-theta)-sin(50^0+theta)+(cos^2 40^0+cos^2 50^0)/(sin^2 40^0+sin^2 50^0) (b) (cos70^0)/(sin20^0)+(cos55^0cos e c35^0)/(tan5^0tan25^0tan45^0tan65^0tan85^0) (c) 2((cos58^0)/(sin32^0))-sqrt(3)((cos38^0cos e c52^0 ...
![If cos (40 + A) = sin 30, the value of A is:a)60b)20c)40d)30Correct answer is option 'B'. Can you explain this answer? | EduRev Class 10 Question If cos (40 + A) = sin 30, the value of A is:a)60b)20c)40d)30Correct answer is option 'B'. Can you explain this answer? | EduRev Class 10 Question](https://edurev.gumlet.io/ApplicationImages/Temp/5655872_b8a0bb2f-d2b2-4df2-af3c-240b819d3d6d_lg.png)
If cos (40 + A) = sin 30, the value of A is:a)60b)20c)40d)30Correct answer is option 'B'. Can you explain this answer? | EduRev Class 10 Question
![SOLVED: sin 80 + sin 40 Establish the identity tan (60) cos 80 + cos 40 Which of the following statements establishes the identity? 0A 80 40 80 + 40 80 + SOLVED: sin 80 + sin 40 Establish the identity tan (60) cos 80 + cos 40 Which of the following statements establishes the identity? 0A 80 40 80 + 40 80 +](https://cdn.numerade.com/ask_images/3cd3b525413c4e83bbae168817184098.jpg)
SOLVED: sin 80 + sin 40 Establish the identity tan (60) cos 80 + cos 40 Which of the following statements establishes the identity? 0A 80 40 80 + 40 80 +
![nilai -cos 20° + cos 40° + cos 80° = A. -2 B. -1 C. 0 D. 1 E. 2 Jawab menggunakan cara - Brainly.co.id nilai -cos 20° + cos 40° + cos 80° = A. -2 B. -1 C. 0 D. 1 E. 2 Jawab menggunakan cara - Brainly.co.id](https://id-static.z-dn.net/files/da7/a4ea85933e70d7a89c3759435ec7c988.jpg)
nilai -cos 20° + cos 40° + cos 80° = A. -2 B. -1 C. 0 D. 1 E. 2 Jawab menggunakan cara - Brainly.co.id
![if cos(40 degrees+A)=sin 30 degrees the value of A is - Maths - Introduction to Trigonometry - 2894062 | Meritnation.com if cos(40 degrees+A)=sin 30 degrees the value of A is - Maths - Introduction to Trigonometry - 2894062 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/discuss_editlive/3446883/2012_09_04_19_12_03/vjyvehhh254267549237243483.gif)