Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if tan ? = 3, then find the value of cos ?.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
You might also like to view...
Find the derivative of the function by first expanding or simplifying the expression. f(x) = (3x - 2)(4x3 - x2 + 1)
A. f'(x) = 48x3 - 11x2 + 33x + 3 B. f'(x) = 48x3 - 33x2 + 4x + 3 C. f'(x) = 36x3 + 33x2 - 11x + 3 D. f'(x) = 12x3 + 11x2 - 33x + 3
Mathematics
Add the integers.34 + (-52)
A. -86 B. 18 C. -18 D. 86
Mathematics
Graph the equation.(x - 1)2 = 7(y - 2)
A. 
B. 
C. 
D. 
Mathematics
Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.
A. 
B. 16t6
C. 
D. 
Mathematics