Establish the identity.sin2(-?) + cos2(-?) = 1
What will be an ideal response?
sin2(-?) + cos2(-?) = (-sin ?)2 + (cos ?)2 = sin2? + cos2? = 1
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Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. ?
B. 1
C. 
D. No limit
Find the product. Write the answer in standard form.(8 - 4i)(7 + 5i)
A. 76 + 12i B. 76 - 12i C. -20i2 + 12i - 56 D. 36 - 68i
Solve the problem.If Emery has $2000 to invest at 8% per year compounded monthly, how long will it be before he has $3300? If the compounding is continuous, how long will it be? (Round your answers to three decimal places.)
A. 6.281 yrs, 6.26 yrs B. 78.476 yrs, 6.51 yrs C. 0.542 yrs, 0.522 yrs D. 0.082 yrs, 0.626 yrs
Provide an appropriate response.Does a square matrix with a row of all zeros have an inverse?
A. Yes B. No