kellerpaula kellerpaula

22-03-2020
Mathematics

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Trigonometry
Angle Sum and Difference, Double Angle and Half Angle Formulas
Find the exact value of:
Cos 52* cos 32* - sin 52* sin 32*

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amna04352 amna04352

22-03-2020

Answer:

cos(84)

Step-by-step explanation:

cosAcosB - sinAsinB = cos(A+B)

cos(52)cos(32) - sin(52)sin(32)

= cos(52+32) = cos(84)

Or 0.1045

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