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Line 42:
Line 42: − + − + − * SEC(-X)=-SEC(X)+ − − + − + − + − +
→Examples
== Examples ==
== Examples ==
'''DSEC(x)'''
'''DCOSEC(x)'''
*'''x ''' is the angle in radians.
*'''x ''' is the angle in Radians.
* Result shows DCOSEC(abc)= NAN
* Result shows COTAN(abc)= NAN
{|id="TABLE1" class="SpreadSheet blue"
{|id="TABLE1" class="SpreadSheet blue"
|- class="even"
|- class="even"
|'''DSEC(Radian)'''
|'''DCOSEC(Radian)'''
|'''Value'''
|'''Value'''
|- class="odd"
|- class="odd"
| DSEC(12)
| DCOSEC(12)
| 1.0223405948650293
| 1.0223405948650293
|- class="even"
|- class="even"
| DSEC(81)
| DCOSEC(81)
| 6.392453221499659
| 6.392453221499659
|- class="odd"
|- class="odd"
| DSEC(-81)
| DCOSEC(-81)
| 6.392453221499659
| 6.392453221499659