Find the value of given trigonometric function. Round your answer to four decimal places.
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?
A. 
B. 
C. 
D. 
E. 
Answer: C
Mathematics
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Perform the indicated operation.The voltage E (in V) in a circuit with a battery of resistance R , a current i, and an inductance L, is 
, where t is the time after the circuit is closed. Find E for R = 1.238 ?, i = 0.00152 A, L = 3.287 H, and t = 0.00600 s to three significant digits.
A. 0.000940 B. 0.000942 C. 0.834 D. -0.832
Mathematics
Subtract.Subtract -14 from -36.
A. -22 B. -50 C. 50 D. 22
Mathematics
Use a sum or difference identity to find the exact value.
A. 
B. 
C. 
D. 
Mathematics
Establish the identity.
= 
What will be an ideal response?
Mathematics