Which one of the following is not equal to cos 4x for all real values of x?«- A sin? 2x – cos? 2x+ В 2 cos? 2x – 14 C 1-2 sin? 2x D (cos 2x – sin 2x)(cos 2x + sin 2x)- E cos 3x cos x – sin 3x sin x

Q: cose = +V(sin?0 - 1) O +V(1 + sin?e) O +V(1 - sin?e)

A:

Q: How do I simplify (9-sin(x))(4-3cos(x))-(9cos(x))(3sin(x))

A: Given that: (9-sinx)(4-3cosx)-(9cosx)(3sinx)

Q: 3 п (3 2 sin (x-2п) cos ( -x ) + tan (п -x) tan 3 п 2 +x

A: Note:-Since you asked multiple questions, according to our policy we can answer only first question…

Q: fOo)=Sinx-41 Cos x 1X-1 cos X (x)

A:

Q: 8. If sinx = , x is in quadrant II, then the value of cos2x is %3D 17 b) -161 30 161 353 a) 289 c)…

A: Given : sin x = 817 x is in quadrant II.     To find the value of cos 2x.

Q: sin?() + cos? () + tan? (4) 2 1/2 2 1 1/2

A:

Q: Cosx 1+sinx 11. 1+sinx 2secx Cosx

A:

Q: Let `f(x)= (9 sin x)/(2 sin x + 4 cos x)`. (9 cos x) (2 sin x + cos x) – (9 sin x ) ( 2cox – 4 sin…

A: Given f(x)=9sinx(2sinx+4cosx). The objective is to find f'x and equation of tangent line at π2.

Q: True or False: sin- (sin æ) = x for all possible values of x. True False

A:

Q: ·/₁ Evaluate cos x sin³ x dx. 2 cos(x) + cos¹ (x) ²/ X syntax error. + C

A: Given query is to find the integral.

Q: 1 + sin x Differentiate y = x + cos x

A: As we know that: The Quotient rule: fg'=f'·g+g'·fg2 The Power rule: ddxxn=nxn-1 Given:…

Q: - sin sin -y = sin (x+y) Prove that cos Xcos 4 -y 4 -x sin 4 X - 4

A:

Q: 1 what are possible values of cos x and tanx? 2 If sinx= Select one: V3 and tanx= 2 1 a. cosx= V3 V3…

A: Consider the right triangle with one angle x degree. Let a be the length of the adjacent side and b…

Q: Prove that sin? 0 + cosª 0 = sin“ 0 + cos² 0.

A: Using fundamental identity of trigonometry.

Q: solve for X SIN(4X+2)o * CSC(3X+5)o=1

A: