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(1 point) Find A, B, C, and o if 30 cos(100t – 158°) - 50 sin(100t...
4.15. Use phasor techniques in the following. (a) Find 2 cos(100t - 459) – 3 cos (100t + 60°) (b) Find 50 sin(100t) + (d/dt) cos (100t - 30). Hint: Do not take the derivative in the time domain; replace it by jo in the frequency domain. (c) Use phasor techniques to evaluate the derivative the formula in the time domain and transform of i(t) = 20 sin(500t) at t = 2 ms. Hint: Write into the frequency domain, using...
Find the expression that is equivalent to sin 70° cos 30° + cos 70° sin 30° Choose the correct answer below. O O O O cos 100° sin 100 cos 40° sin 40°
You are given Vs = A1.12.cos (100t +B) Vc = A2. Cos (100t + B2) Find VR = Az . cos (100t + B3) with - 180° SB3 S 180° + DR w Solve without using a calculator. Given Variables: A1: 8 V B1: 5 degrees A2:8 V B2: -40 degrees Determine the following: A3 (V): B3 (degrees):
(8) Compute the current across the resistor. 2 cos(100t) ImFT * 1 mF 4 cos(50) 100
Find the exact value of the expression. sin (30) sin(90°) - cos (30) cos(90°) = Find the exact value of the expression. sin( – 45° ) sin( - 30°) = [ Write each expression as a single trigonometric function. sin(7x)cos(3x) – cos(7:c )sin(32) = Write each expression as a single trigonometric function. cos(6.c )cos(3x) - sin(62) sin(30) = Write each expression as a single trigonometric function. cos(7x)cos (4:0) + sin(78) sin(4x) =
Question 1 1 pts Find the derivative of f(x) = cos(sin(3x)). Of"(x) --cos(3x) sin(sin(3x)) O f'() -- 3cos(3x) sin(sin(3x)) Of'(x) - 3cos(3x) sin(cos(3x]) f'x) --sin(3x) cos(cos(3x)) Question 2 1 pts Find the derivative of f(x) = cos(x^2 + 2x). Of "(x)=2x+2 sin(x^2 + 2x) O f'(x)= x^2 sin(x^2+2x) Of"(x)= (2x+ 2) sin(x^2 + 2x) f'(x)= -(x^2 + 2) sin(x^2 + 2x) O f'(x)--(2x + 2) sin(x^2 + 2x) Question 3 1 pts Use implicit differentiation to find the slope of...
Find sin , cos , and tan - O A. sino= _ . cosO=- , tan 0= - 13 O B. sino= - ], COSO = 3, tan o=1/3 o c. sino=- , coso - ., tan og OD. sino - 13. COSO = 1, tan 0=13 Find the exact value of sin 510º. O B. v O A. OC. O D. Find the exact value of tan 111. OA OB. Z OD. 13 OC. 2 Suppose that there is...
Find sin 105° first using a difference identity and then using a half-angle identity. Then compare the results. Which expression is a difference identity applied to sin 105°? Choose the correct answer. O A. sin 135º cos 30° + cos 135° sin 30° OB. sin 135° sin 30° - cos 135º cos 30° O c. sin 135° sin 30° + cos 135º cos 30° OD. sin 135ºcos 30° - cos 135º sin 30°
Find the power delivered to a load of 30 kΩ by a 6000 cos(100t) V generator when the line between the two acts as a 400 H inductor in series. What capacitance should be added in series to balance the line?
vs= 100cost(100t)
Q1. Find the S, P, and consumed in the circuit Vs(t) = 100 cos (1000). 10 100 iz(t) 50 mH . 2 vst) 15 SEP1 mF 1m