If tan theta =root 3 and sin theta dash = 1/2 find the value of cos(theta + theta dash)
Answers
Answered by
21
tan θ= √3
therefore,
θ=60°
sin θ'= 1/2
therefore,
θ'=30°
θ+θ'= 60+30= 90°
cos 90° = 0
Hope it Helps
Answered by
0
Explanation
tan (@) = √3 = tan 60°
so, @=60°
and
sin (@')= 1/2 = sin 30°
=> @'= 30°
now the value of cos(@+@')
= cos (60°+30°)
= cos 90°
= 0 (answer)
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