* Is it right to say that cos(60°+30°) = cos 60° cos 30° – sin 60° sin 30°.
slove this clearly on paper…​

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* Is it right to say that cos(60°+30°) = cos 60° cos 30° – sin 60° sin 30°.
slove this clearly on paper…​

2 thoughts on “* Is it right to say that cos(60°+30°) = cos 60° cos 30° – sin 60° sin 30°.<br />slove this clearly on paper…​”

  2. Answer:

    Yes, the statement is correct.

    As we have cos(A+B)=cosA.cosB−sinA.sinB. [ Standard formular]

    For the given problem, A=60°

    B=30°

    Step-by-step explanation:

    I hope that it will help you

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