ICSE Class 10: Trigonometric Identities Videos | Applications of Trigonometric Identities - 4

• if a is an acute angle and sec a = 17/8, find all other trigonometric rarios of angle a ( using trigonometric indentities).
• solve
  
• Prove that: sin2a+cos2a=1
• To memorize trigonometry formulas ,please let me know if there is  any easy method ? -thanks
• please help me to answer the question
  
• Hello Sir, I have a query in maths trigonometry please help me to solve the given problem
  
• tan ^2
• value of sin 45
• (cosec A -sinA) (sec A -cosA)=1/tanA cot A
• sec²a.cosec²a = tan²a + cot²a+ 2

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