Math, asked by keerthi7558, 11 months ago

cos (A-B)-cos(A-B)=
Pls help me

Answers

Answered by saswatibhukta

Answer:

Step-by-step explanation:

(cosAcosB+sinAsinB)-(cosAcosB+sinAsinB)= cosAcosB-cosAcosB+ sinAsinB-sinAsinB=0

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