20. a. If EF = 84°, find (1) ZEFD (2) HF (3) Z1 17 b. If EF = 79°, find (1) ZEFD 87° (2) HF (3) Z1 F +

Q: 8. 4 sin(at +b), where a and b are constants.

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Q: 2t For the wave y = 6 sin- the angular frequency is 2/3

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Q: implicitly, if e"(e – 1) + sin(2r + 5y) = In(v7) -- cot(2x) Find

A: Implicit functions are thise functuon in which we can't separate variables. We have to difderentiate…

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A: Given: sinx=45, x lies in quadrant I. And siny=1213,y lies in quadrant II. We know that, In quadrant…

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Q: If z = +i then Im(coshz) A) –sin1sinh4 B) cos1cosh4 e* +e* C) cos1 2 D) sin1cosh4 E) sin1

A: Topic:- hyperbolic function and complex number

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A: Given, θ = (π/2) = 90o sin2 θ = (sin θ)2 = (sin 90)2 = 12 = 1 ∴ sin2 θ = 1

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A: The trigonometric identity is 2cos2x=1+cos2x. Use the trigonometric identity 2cos2x=1+cos2x in the…

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Q: 2. Use your calculator and compute to 4 decimal places (a) cos(22°)

A: Part a,Given,          cos22°

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A: Rewriting the given equations:

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A: Consider ∫cos5x dx =∫cos4x cos x dx =∫(cos2x)2 cos x dx=∫(1-sin2x)2cos x dx…

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Q: 0° S (c) Prove that: 2cos 20. cose 2 + 2 tan0. sin0 = %3D cos?e – sin? e cose o AEGW is drawn.

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Q: The first step in solving IR + Ir = E for I is to obtain a single occurrence of I by terms on the…

A: Fill in the blanks :  The first step in solving IR+Ir=E for I is to obtain a single occurrence of I…

Q: eindtahwil dltakamul althun ayıgı laa alahdathiaat alqutbayh csc) r. Sin True fale

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Q: 10 ESE( admun insbeupoo a - Given that tan 0 = - with 0 in quadrant 4. Find the exact value of cos…

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Q: If A=2(1-cos 0)â, – pyâ, (1– cos ¢)â, – ppâ, +zcos² þ⸠, what is 4 8. V•A ?

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Q: 45. cos(a) - V3 = 0

A: Given:cos(α)-3=0

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Q: .... 2. .... 10 .... 50 Show work: trig ratio (sin, cos, or tan) of L = trig ratio: =7°

A: tan 50∘=pq Here, p represents opposite and q represents adjacent. p=x and q=10 Substitute the value…

Q: 13:49 4 Screen. 34 (C) If y = sin 2x + cos 2x , then (y,)o =? ans. none PAE sin+ COs 2

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Q: If f(1, y) = e“ sin 7y, then fay is given by: o - 28 et sin 7y O - 28 e“ cos 7y O 28 e" sin 7y O 28…

A: Given that: f(x,y)=e4x.sin7y

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Q: 1/w cos Tº If h(w) = 10 -dz then h'(w) = (m),4

A: Given:-h(w)=∫101wcosx9x2dxTo find: h'(w)

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Q: If z = x2 + y? x = e' cos(s) and et sin(s y = ), then

A: ∂z∂s=∂z∂x∂x∂s+∂z∂y∂y∂s Lets find out each derivative z=x2+y2∂z∂x =2xx=etcos(s) ∂x∂s=et…

Q: 9. 3 cos(wt –@), where w and a are constants.

A: We use first Cos(a-b)=cos(a) cos(b)+sin(a)sin(b) and then we use Laplace transform of…

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A: Given function is as below :

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Q: Q12) If w=f(a,b,c)=cos(ab)sin(b)+c, what is at ( -,6 )?

A: Given ,fa,b,c=Cos abSin b+CPut 12,π3,6i.ea=12 ; b=π3 ; C=6

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Q: 4. 16 30 What is the Cosine R? What is the Cosine S?

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Q: 9. Find an appropriate guess for y,. You do not need to find the values of the coefficients. y" +…

A: Given y''+3y'+2y=5e-x+xcosx        D2+3D+2y=5e-x+xcosx The auxiliary equation is,…

Q: 16. b if sin B = 0.5 and a = 12 %3D 17. ZA if a = 5 and b = 7 18. ZB if a =7 and c = 9 COSA = 7 %3D…

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Q: Which of the following is equal to S ešin ® de ? A. e+ cos e+ C 8. ecos + C Option 1 Option 2 C.…

A: Given:    Intergral of esinθ dθ

Q: 9. Find an appropriate guess for y,. You do not need to find the values of the coefficients. y" +…

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Q: If the substitution m = 3x - 2y was applied to the DE: =1+tan(3r – 2y), the resulting DE %3D dr…

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Q: The first step in solving IR + Ir = E for I is to obtain a single occurrence of I by_________ I from…

A: Given: The first step in solving IR + Ir = E for I is to obtain a single occurrence of I by_________…

Q: By Euler's formulae eia = cos a + i sin a and substitute in the above equation. 00 U (a, 0) = (cos…

A: It is because of odd function integration over symmetric interval.