exp (exp(- in)) -0.3679 cos TT - i sin Tt - exp(cos T - isin Tt) 0.3679

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

A: This question is of double angled identity.

Q: (a) sin-' (sin ()) (0) cos (cos (-)) 6. Evaluate COS

A:

Q: 25. Verify the identity. cos (-0) 1+sin (-0) sec 0 + tan 0

A: here is the proof

Q: tan(tan3x)dx Evaluate: cos-3x -In |sec (tan3x)| + C (B ® - in [cos(tan3x)| + C © - sin( tan3x)| + c…

A: We need to evaluate the following integral I = ∫tantan3xcos23xdx…

Q: 2. What is the exact value of tan (-75°)? O 2-V3 O-2+ V3 O 2+ v3 O-2-V3

A: To find :  The exact value of tan(-75°). Note: To find the exact value apply the reference angle by…

Q: True or False sin² 0 = 1 – cos² 0.

A: Use the trigonometric identity sin2θ+cos2θ=1 to verify the statement.

Q: sin ;cos 3

A: Given: sinπ4=          ……1cos8π3=          ……2

Q: II. Find tan (A +B) and tan (A - B) if: 5. cos A = - and sin B =, both A and B in QII.

A: As per bartleby guidelines we only give first question answers.

Q: 2 cos I Use a counter-example to show that cos 2x

A:

Q: sin (x) = -0.8. What is cos (90° - x)? Submit

A: Given: sin (x)= -0.8 Formula: cos (A-B)= cos A cos B + sin A sin B

Q: COS M + Sin n 2 secn COS n

A: we can solve by using trigonometric identities  Sin2x+cos2x=1

Q: 11. Evaluate. cos (tan-1+ sin-1)

A:

Q: 5. cos A =- and sin B =, both A and B in QIl. 6. cos A = - and cos B = - 2, with A and B in QIII. 17

A:

Q: | 1' cos(T +1) dr. COS

A: using the integration by parts

Q: sin7t sin4t dt =- 121 – cos 31) dt A) True B) False

A:

Q: Cos2 π/3 + sin2 π/3

A:

Q: Differentiate

A: Given: the function

Q: Estimate cos E- 0.1) + cos

A: Follow the procedure given below.

Q: 11. sin-(-0.99) 12. cos(-0.1)

A:

Q: 3 sin(0) + 5 cos(0)

A:

Q: -1 cos COS 2)

A: Given: - The expression is, cos-1-12 To Evaluate: - The solution of the given expression.

Q: Evaluate [(cos² 0 + 2 csc² 0 + sin²0) do. (a) 0 + 2 cot 0 +C (b) 0 2 cot 0 + C - (c) sin²0 + 2 cot 0…

A:

Q: sin(cos (0.5354)) = O 0.8446 O 1.8446 O -0.1554 O -1.1554 O 2.8446

A:

Q: 7. Prove: cos(0 + 2) 7) = sine.

A:

Q: Estimate cos(π/4 - 0.1) + cosπ/4

A: Solving

Q: 40. sin (27 - x) 37T 42. cos COS

A:

Q: csc 0tan e sin 6 cos 8 = cosd

A: Given data:   The given trigonometric expression is cscθtanθ-cosθ =sin2θ/cosθ.     The left-hand…

Q: sin() cos( 2

A: To Find :   ∫sinx2cos3x2dx   Note: 2sinAcosB=sin(A+B)+sin(A-B)

Q: Verify the identity.

A: Given: verify the identity cos3x+cos5xcos3x-cos5x=cotxcot4x we know that…

Q: s cos 3ede CoS |- sinb

A: follow next step

Q: Cos' 0-Sin' e 2 Cos o

A:

Q: (a-B) (at sin (a+B) 2- show that cosa – cosß = -2sin 2.

A:

Q: cos² 3ß – sin² 3ß

A:

Q: Mutiply    (3 sin  theta +4 ) (5 cos theta + 2 )

A:

Q: 3 cos(0) sin(0) + 2 cos(0) = 0

A:

Q: sin(cos (0.4498)) %3D -1.1069 0.8931 1.8931 2.8931 -0.1069

A:

Q: Verify the identity: (1 - cos t)/(1 + cos t) = (csc t - cot t)2

A: Given: 1-cost1+cost=csc t-cot t2

Q: Verify the identity: cos4 t - sin4 t = 1 - 2 sin2 t

A: We have the identity cos4t-sin4t=1-2sin2t   Consider LHS LHS=cos4t-sin4t Rewrite as…

Q: cos 0 + sin 0 2 COS 0.

A: We use the Pythagorean identity to write the expression using sin only

Q: Cos 0/2 -cos 0=1

A:

Q: (표) + sin (포). Give the exact value of COS O1 V3 V2 O 1+v3

A: We can make it easier for you.

Q: cos 20 + isin 20 B (cos e + i sin 0) A c (cos0 – isin 0) D cos 20 - isin 20

A: Simply convert the polar form to trigonometric form.

Q: sin (x) = -0.6. What is cos (90° - x)? %3D Submit

A: Explanation of the answer is as follows

Q: cos e) tan (0) +3tan(0)=0

A:

Q: (* sin - 2y cos )d = 0. dr+2ry cosdy COS

A: Find the attachment

Q: Cos O 0 = [2] COS %3D

A:

Q: 2 + cos 0 = 1 + 2 sin² 0

A: The given equation is  2+cosθ=1+2sin2θ The given set of possible answers is  -π3,-π4,π6,π4,2π3,π,3π2…

Q: rectangular form. [3 (cos 40° + j sin 40°)] [4 (cos 80° + jsin 80°)]

A:

Q: 1+ Cos 0 1-Cos 0

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…