Use a negative-angle identity to write an equivalent trigonometric expression involving a positive angle.tan 
A. -tan 
B. 1 - tan 
C. cot 
D. tan 
Answer: A
Mathematics
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Evaluate the expression without the use of a calculator, and then verify your answer using a calculator.log 107
A. 7 B. 10 C. 107 D. log 7
Mathematics
Provide an appropriate response.Perform the indicated operations: 169 × 104 + 24 × 103 =
A. 1,930 B. 1,930,000,000 C. 1,714,000 D. 11,193
Mathematics
Find the exact value of the following expression without using a calculator.cos 
A. 
B. - 
C. - 
D. 
Mathematics
Find a ? b.a = 
, b = 
A. 
B. -9
C. 
D. 63
Mathematics