CBSE Class 10 - Trigonometric Ratios of Complementary Angles Videos

• trigonometry
  
• tanA =cotB find A+B=?
• If cos(90 - A ) = 0 then sin( A + B ) =
• SHOW THAT cos 38°cos 52°- sin 38°sin 52° =0
• if cos (40°-X)=30sin find the value of X
• evaluate cot (90-theta) -tan theta
• Evaluate cos48°cos42°–sin48°sin42°
• Evaluate cot 12 cot 38 cot 52 cot 60 cot 78
• If A and B are acute in right angled ABC, then sin² A + sin² B =
• If tan 7theta=cot(5theta–30degree),both angles are acute angles,find the value of theta

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