{sin (α + 30 degrees) + sin (α - 30 degrees)} / sin α equals

RELATED INFORMATIONS

• 1. Sin is more or less equal to minus one
• 2. What is sin minus 79 degrees and 47 minutes
• 3. Given that sin α = 3 / 5 and α is the second quadrant angle, then SiN4 α / [4sin & # 178; (π / 4 + α) Tan (π / 4 - α)] is equal to
• 4. If a is the second quadrant angle and Tan (a - π / 4) = 7, what is sin (a + π / 4) equal to
• 5. Given that α is the angle of the second quadrant, sin α = 3 / 5, β is the angle of the third quadrant, Tan β = 4 / 3, find the value of Tan (α + β)
• 6. If sin (α - π) = 35 and α is the fourth quadrant angle, then Tan α = 0___ ．
• 7. If sin α = 35 and α is the second quadrant angle, then Tan α=______ ．
• 8. If sin α = 4 / 5, Tan (α + β) = 1 and α is the second quadrant angle, then Tan β=
• 9. Given that cos α is equal to one third, α is in the fourth quadrant, find the value of sin α times Tan α
• 10. Set 0
• 11. Sin is more or less half
• 12. If - 2 Pie / 3 < angle a < Pie / 6, using trigonometric function line, we can get the value range of sin a is
• 13. Sin α equals half angle α is an acute angle
• 14. We know sin α - cos α = 1 / 5 (0 ≤ α ≤ π) to find Tan α
• 15. Given sin α + cos α = 15, (0 < α < π), the value of Tan α is obtained
• 16. Given sin α + sin β = sin θ cos α + cos β = sin θ, prove cos (α - θ) = half This question is invalid
• 17. Sin α - sin β = - (one third) cos α - cos β = one half, find sin (α + β)
• 18. Given that sin α + cos β = one third, sin β - cos α = one half, find the value of COS (α + β) Sin α - sin β = one third cos α + cos β = one half
• 19. What is sin α cos α equal to
• 20. What is sin θ × cos θ equal to