Mathematics Resources for Class 11

Showing posts with label Trigonometry (Application of formulae). Show all posts
Showing posts with label Trigonometry (Application of formulae). Show all posts

Wednesday, September 11, 2013

(SinA +Sin3A)/(CosA +Cos3A) = Tan 2A

Show that (SinA +Sin3A)/(CosA +Cos3A) = Tan 2A
Posted by Rashmi Kathuria at 8:59 AM No comments:
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Labels: Trigonometry (Application of formulae)

Monday, September 9, 2013

Applying Tan(A-B)

Posted by Rashmi Kathuria at 11:32 AM No comments:
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Labels: Trigonometry (Application of formulae)

Applying tan(A+B)

Posted by Rashmi Kathuria at 11:31 AM No comments:
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Labels: Trigonometry (Application of formulae)

Sunday, September 8, 2013

Prove that 2 Cos (Pi/13). Cos (9Pi/13) + Cos (5Pi/13) + Cos (3Pi/13)= 0

Prove that 2 Cos (Pi/13). Cos (9Pi/13) + Cos (5Pi/13) + Cos (3Pi/13)= 0
Posted by Rashmi Kathuria at 1:49 AM 1 comment:
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Labels: Trigonometry (Application of formulae)
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Rashmi Kathuria
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Labels

  • Find the error- Trigonometry (2)
  • Graphs of Trigonometric Functions (1)
  • Trigonometry (Application of formulae) (4)
  • Trigonometry (Evaluate values of T-Ratios at given angles) (4)

Blog Archive

  • ▼  2013 (11)
    • ▼  September (11)
      • Errors Trigonometry and Sets
      • Find the error
      • (SinA +Sin3A)/(CosA +Cos3A) = Tan 2A
      • Applying Tan(A-B)
      • Applying tan(A+B)
      • Graph of Trigonometric Functions (I)
      • Prove that 2 Cos (Pi/13). Cos (9Pi/13) + Cos (5Pi/...
      • Evaluate Sin(-11Piby3)
      • Evaluate Cosec(-19Piby3)
      • Video Evaluate Cot (-15Piby4)
      • Video Evaluate Tan(19Piby3)

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