liskhannah liskhannah

03-08-2022
Mathematics

contestada

Cos(11)cos(19) - sin(11) sin(19)

Write the expression as a function of one number then find it’s exact value.

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vuyitmpangela vuyitmpangela

03-08-2022

Answer:

√3/2

Step-by-step explanation:

This is compound angle of cosine

cos(11+19)

=cos(30)

=√3/2

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