Answer question 1 and 2 and i’ll give a brainliest to the person with the correct answer

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left