SOLUTION: Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number.
cos 14° cos 46° − sin 14° sin 46°
Algebra.Com
Question 664787: Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number.
cos 14° cos 46° − sin 14° sin 46°
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number. cos 14° cos 46° − sin 14° sin 46°
**
Identity: cos s cos t-sin s sin t=cos(s+t)
cos 14° cos 46°−sin 14° sin 46°
=cos (14º+46º)
=cos (60º)
=1/2
RELATED QUESTIONS
Use an addition or subtraction formula to write the expression as a trigonometric... (answered by robertb)
Use an addition or subtraction formula to write the expression as a trigonometric... (answered by stanbon)
Use an addition or subtraction formula to write the expression as a trigonometric... (answered by Edwin McCravy)
Use an Addition or Subtraction Formula to write the expression as a trigonometric... (answered by lynnlo)
Use an Addition or Subtraction Formula to write the expression as a trigonometric... (answered by lwsshak3)
Use an Addition or Subtraction Formula to write the expression as a trigonometric... (answered by greenestamps)
Use an Addition or Subtraction Formula to write the expression as a trigonometric... (answered by Alan3354)
Use an addition or subtraction formula to write the expression as a trigonometric... (answered by ikleyn)
Use an addition or subtraction formula to write the expression as a trigonometric... (answered by ikleyn)