Question

How to calculate tan 40° without using log book?​

Answer 1

Answer:

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Answer 2

Answer:

one way to find is using the values of sin 40 and cos 40. tan 40 = 0.839095 —-> value of tan 40 by formula.

Step-by-step explanation:

How do we calculate tan 40 degree?

How do we calculate tan 40 degree?one way to find is using the values of sin 40 and cos 40.

How do we calculate tan 40 degree?one way to find is using the values of sin 40 and cos 40.use the trignometric results:

How do we calculate tan 40 degree?one way to find is using the values of sin 40 and cos 40.use the trignometric results:tan (30 + 10) = tan 30 + tan 10 / (1-tan 30 tan 10)

How do we calculate tan 40 degree?one way to find is using the values of sin 40 and cos 40.use the trignometric results:tan (30 + 10) = tan 30 + tan 10 / (1-tan 30 tan 10)tan 40 = 0.57735 + 0.176326 / ( 1-0.1018) ——→ values are approximated.

How do we calculate tan 40 degree?one way to find is using the values of sin 40 and cos 40.use the trignometric results:tan (30 + 10) = tan 30 + tan 10 / (1-tan 30 tan 10)tan 40 = 0.57735 + 0.176326 / ( 1-0.1018) ——→ values are approximated.= 0.753676/0.8982.

How do we calculate tan 40 degree?one way to find is using the values of sin 40 and cos 40.use the trignometric results:tan (30 + 10) = tan 30 + tan 10 / (1-tan 30 tan 10)tan 40 = 0.57735 + 0.176326 / ( 1-0.1018) ——→ values are approximated.= 0.753676/0.8982.tan 40 = 0.839095 —-> value of tan 40 by formula.

Or

The value of tan 40 degrees is 0.8390996. . .. Tan 40 degrees in radians is written as tan (40° × π/180°), i.e., tan (2π/9) or tan (0.698131. . .).

And

The tan of 40 degrees is 0.8391, the same as tan of 40 degrees in radians.