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IF COS A +COS B+ COS C =3
THEN FIND THE VALUSE FOR SIN A +SIN B +SIN C

Arbind Dubey , 7 Years ago
Grade 12th pass
anser 1 Answers
Arun

Last Activity: 7 Years ago

As we know maximum Valure of cos\theta is 1.
hence cosA + cosB +cosC will be 3, if cosA, cosB, cosC individually are 1
and sin\theta is always 0 where cos attains its minimum and maximum.
hence sinA, sinB, sinC will be 0 indvidually.
thus sinA+ sinB+ sinC = 0

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