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Verifying a trigonometric Identities

630 views · Published 18 December 2012 · 1:22 · Indexed 20 September 2026

Channel: Brian McLogan · 2012 · Education

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👉 Learn how to verify trigonometric identities having rational expressions. To verify trigonometric expression means to verify that the term on the left hand side of the equality sign is equal to the term on the right hand side. To verify rational trigonometric identities with one term at the denominator, it is usually more convenient to start with getting rid of the denominator of the rational term. This can be done by multiplying both the numerator and the denominator of the rational term by the reciprocal of the denominator term.

For non-rational trigonometric identities, we can replace given trigonometric functions/identities with equivalent trigonometric functions/identities and evaluate accordingly.

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Organized Videos:
✅ Verify Trigonometric Identities
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMos0wJjgo2eAIU0pwSOJiFO
✅ Verify Simple Trigonometric Identities
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMpz2HcKBer2ZvSJukha_c-N
✅ Verify Trigonometric Identities with Rational Expressions
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMrpLos0wctDmyZ2CUAWqrxN
✅ Verify Trigonometric Identities by Multiplying
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMoXcPHJcaeY2T39zP9YxGbn
✅ Verify Trigonometric Identities by Adding and Subtracting
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMoZqv87EvOZMrDTvYv9Q9wI
✅ Verify Trigonometric Identities with Fractions
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMppMSO7qBzxCz7fOBwiqA_6
✅ Verify Trigonometric Identities by Pythagorean Identities
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMq17Jbf1tWpi7fGFuL5fBAv

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