Is it:
a.) square root of 2 over 2
b.) π
c.) 0
d.) π/4
Evaluate Cos^-1(tan π/4)?
2011-04-26 3:58 pm
回答 (2)
2011-04-26 4:04 pm
C. 0
Following the order of operations ...
• tan (π/4) is the same as tan (45°) which is equal to 1
• the cos^-1(1) or cosine inverse of 1 is asking what angle would have a cosine of 1 and that would be 0 radians (0π) or 0° (degrees)
Following the order of operations ...
• tan (π/4) is the same as tan (45°) which is equal to 1
• the cos^-1(1) or cosine inverse of 1 is asking what angle would have a cosine of 1 and that would be 0 radians (0π) or 0° (degrees)
2011-04-26 3:59 pm
d.
收錄日期: 2021-04-13 17:57:25
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