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

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

Grade:12th pass

1 Answers

Arun
25763 Points
4 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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