三角関数　公式集

単語カード

設定全面表示

• sin(A+B)

  sinAcosB+cosAsinB
• sin(A-B)

  sinAcosB-cosAsinB
• cos(A+B)

  cosAcosB-sinAsinB
• cos(A-B)

  cosAcosB+sinAsinB
• tan(A+B)

  tanA+tanB/1-tanAtanB
• tan(A-B)

  tanA-tanB/1+tanAtanB
• sin2A

  2sinAcosA
• cos2A(大元)

  cos²A-sin²B
• cos2A(sin)

  1-2sin²A
• cos2A(cos)

  2cos²A-1
• tan2A

  2tanA/1-tan²A
• sin²A/2

  1-cosA/2
• cos²A/2

  1+cosA/2
• tan²A/2

  1-cosA/1+cosA
• sin3A

  3sinA-4sin³A
• cos3A

  -3cosA+4cos³A
• sinAcosB

  1/2(sin(A+B)+sin(A-B))
• cosAsinB

  1/2(sin(A+B)-sin(A-B))
• cosAcosB

  1/2(cos(A+B)+cos(A-B))
• sinAsinB

  -1/2(cos(A+B)-cos(A-B))
• sinA+sinB

  2sin(A+B/2)cos(A-B/2)
• sinA-sinB

  2cos(A+B/2)sin(A-B/2)
• cosA+cosB

  2cos(A+B/2)cos(A-B/2)
• cosA-cosB

  -2sin(A+B/2)sin(A-B/2)

広告

コメント