Math, asked by pintukumar65, 1 year ago

sin36/cos54-sin54/cos36

Answers

Answered by DJstorm

3

Answer:

Step-by-step explanation:

cos(A+B)=cosAcosB-sinAsinB

Therefore ,

cos36°cos54°-sin36°sin54° = cos(36+54)°

= cos 90° = 0

Hope this helped you

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