SOLUTION: If cos -105º = -0.26 and csc -105º = -1.03, then cos 105º = and csc 105º = .

Question 1170280: If cos -105º = -0.26 and csc -105º = -1.03, then cos 105º =
and csc 105º =
.

Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!

Cosecant of x means .

Answer by ikleyn(52905) (Show Source): You can put this solution on YOUR website!
.

(1) We are given cos(-105°) = -0.26. Cosine is an EVEN function. THEREFORE, cos(105°) = cos(-105°) = -0.26. ANSWER (2) We are given csc(-105°) = -1.03, csc(-105°) = by the definition = . Sine is an ODD function : sin(-105°) = - sin(105°). (*) THEREFORE, csc(105°) = = due to (*) = - = - csc(-105°) = - (-1.03) = 1.03. ANSWER

Solved.

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