Determine the exact value of csc ( cos-1) – cos (tan-) COs-1 COS 8. |

Q: Verify the identity: cos(α - β)/(cos α cos β) = 1 + tan α tan β.

A: We will use the identity

Q: (a) Evaluate| cos (4x) -dx. (1+ 2sin ( n(4x)*

A:

Q: 311 = Sinx %3D COS

A:

Q: csc(sec-1 2) + cos(tan-(-v3).

A: Given data:     The expression for the given function is: csc(sec-12)+cos(tan-1(-31⁄2).   The given…

Q: Cosx Differentiate Tam 1+ cosx

A:

Q: cos-1 (cosx)= x       where..............

A: Given, cos-1cos x=x

Q: sec(-0) cose 1-cos²0 csc20 CS

A:

Q: Verify the identity: (cos 4x - cos 2x)/(sin 2x - sin 4x) = tan 3x

A:

Q: Express cos (a) in terms of cos(2a). Express sin (a) in terms of cos(2a). cos² (a) COS sin (a)

A: (a) We have to express cos2α in terms of cos2α.

Q: Sin(39)=Cos ( ? )

A: We know, Sin(x) = Cos(90°-x)

Q: Find the value of cos (570)sin (510) + sin (- 330)cos (- 390)

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Q: (1 + cos ?)(1 − cos ?)=sin2 ?

A: TO SHOW 1−cosx1+cosx=sin2x

Q: |CoS tan-1 24 1꼭 + cos. -1 3

A:

Q: Show that os (2 tan~ r) COs

A: We have to prove that cos(2tan-1x)=1-x21+x2.

Q: cos(A) cos(B)

A: Our Aim is to find the value of cos A cos B=?

Q: Verify the identity : cos(α - β)/(cos α .sin β) = tan α + cot β

A: Given : cosα - βcosα sinβ = tanα + cotβ

Q: Does cos (π/2 - x) = cos (x - π/2)? Explain with examples

A: