QUESTION 2 In APQR, QR = 3 units, PR =x units, PQ = 2x units and PQR = 0 %3D 2x 3. R. x²43 Show that cos@ = 4x 2.1.

Q: 4sinx If y then the value of y' is COSX 4 tanx 4 sec2x 4 secx tanx 4 secx

A: First simplify y using the trigonometric ratios. Then, take the derivative of both sides of the…

Q: If cos x = 0.62 and P(x/2) is in QII, then cos(x/2) is equal to?

A:

Q: How many solutions does sin2(4x)=1/2 have in the interval (0, 5pi/8)?

A: Answer

Q: cos 5pi/12

A: Finding the value of Cos(5pi/12) using Cos(A+B).

Q: dy Find dif sin x + 2 cos 2y) = 1 dx

A:

Q: in(cseg + cotsde 5. 2

A: Use simple integration formula.

Q: If sinX = -1/3 and cosX is positive, determine the exact value of cotX.

A: We know, cosx= ±√(1-sin2x) cotx= cosx/sinx

Q: cos x = sin 2x, x I SO 3.

A:

Q: Show that Cosx dx 9- Sin 3D

A:

Q: You are asked to check a classmate's work and give quality feedback. Your classmate said that cos 30…

A:

Q: cos 2π/ 3 ..........

A: Given expression: cos2π3

Q: dr de sin - r- cos + eª cos = 0

A:

Q: 6T cos 8 de : so O o o O

A: Here we will solve the  given integral,

Q: 4 Find Cose and sine tan0 if s0 <J and 2

A: Given  sin θ = 45 and π2≤θ&lt;π

Q: 8. 2 sin? x- V3sinx = 0 9. 3 csc(2x) +6 = 0 %3D 10. 2 cos? x = 2+ sinx %3D

A:

Q: If sec(α)=25.2/19.4, then what is the value of cos(α)? (options in image)

A:

Q: 大 1-cos X P-V= 2

A:

Q: find the exact value cos151ocos1o + sin151osin1o

A: We have to use cosAcosB+sinAsinB= cos(A-B)With A=151 and B=1

Q: Question 5 of 11 (3x-2+tanx-4)dx= O A. -4+ OB. -3x-2+sec²x + C +tant-4 C. 6x-2+tanx-4 OD.…

A: Given;  The integration of derivative of (3x-2+tanx-4).