Hey there stay home and stay safe
According to HOMEWORKLIB RULES I have to solve only the first question when multiple questions are given.So I am solving the first question.
And please leave a like. Thank you.
5. Prove the following identity. (sin x + cos x) = 1+sin 2x 6. If cos(x) = , and x E QIV , find the exact value of each of the following. a.sin (2x) b.cos cos()
Using the identity sin? 0 + cos² 0 = 1, find the value of tan 6, to the nearest hundredth, if sin 0 = -0.62 and 3 < 0 < 27.
If cos theta= square root 11/6 and tan theta < 0, find the
exact value of sin the
1. If cos os (0) – VII and tan(Q) <o, find the exact value of sino).
If tan a= 12 5 270° <«< 360°, then find the exact value of each of the following. a. sin 2 b.cos 2 c. tan 2 a. sin IN (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression Rationalize the denominator) CL b. cos (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression Rationalize the denominator) c. tan (Simplify your answer, including any radicals. Use integers...
Find the exact value of the expression cos(sin If sin = sin 2 15 find the exact value of cos(20) Solve sin 2x = cos 2x, where 0 <x<21.
6. If cos(x) = -, and xeQIV , find the exact value of each of the following. Show all work. a.sin(2x) X b.cos (६)
QUESTION 12 Use a double-angle or half-angle identity to find the exact value of: cos(0) = and 270° <=< 360°, find sin 5 OAV10 10 B. 10 C. None of these OD 10 3 17 OE 4 QUESTION 13 Use a double-angle or half-angle identity to find the exact value of: 3 sin(0)= and 0° <o<90° , find tan 5 - šar 10 OA. 3 B.V10 Octs OD. -V10 E V30 QUESTION 11 Use a double-angle or half-angle identity to...
show work
9. tan 37 10. sec 4 11. Find sin(x + y) and cos(x + y) if cosx = - cosy = -— x is in quadrant II and y is in quadrant III. [10] 12. Find the exact value of sin 2x and cos 2x if sin x = and cos x = - [6] 5 13. Simplify tan (x + 3) to a form involving sinx, cosx, and/or tanx. [6]
The answers for part b are sin(A/2) = √26/26, cos(A/2) =
-5√26/26, and tan(A/2) = -1/5, but I can't figure out how to get
there
lies and (b) find the 24. Iftan A = with 34 < A< 21, then (a) determine the quadrant in which exact value of sin (), cos (), and tan ().
1. Use an identity to find the exact value of cos(?) given that cos(O) = { with 270° << 360°