Find the exact value of the trigonometric expression without the use of a calculator.If tan ? = 
, ? < ? < 
and cos ? = - 
, 
< ? < ?, find the exact value of tan (? + ?).
A. - 
B. 
C. 
D. 
Answer: D
Mathematics
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Graph.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics
Find the value. Give an approximation to four decimal places.ln(569 × 24)
A. 3.8026 B. 4.1653 C. 20.1612 D. 9.5219
Mathematics
Factor the polynomial completely.25x2 - 40x + 16 - y2
A. (5x - 4 + y)(5x + 4 - y) B. (5x - 4 + y)(5x - 4 - y) C. Prime D. (5x + 4 + y)(5x + 4 - y)
Mathematics
Find the indicated cross product.v = 5i + 3j, w = -3i - 4kFind w × v.
A. -12j - 15k B. 12i - 20j - 9k C. -9i - 12j + 12k D. 20i - 12j - 9k
Mathematics