Trigonometric Values Using Hand Trick

The video tutorial by Phoenicians teaches a simple hand trick to memorize trigonometric values for sine, cosine, and tangent at angles 0, 30, 45, 60, and 90 degrees. By using fingers on the left hand, viewers can easily calculate these values without writing anything down. The tutorial also briefly mentions how to find cosecant, secant, and cotangent once sine, cosine, and tangent are known. The video concludes with a call to action to subscribe and follow for more content.

What is the main focus of the tutorial presented by Phoenicians?

• Solving complex trigonometric equations

• Understanding the history of trigonometry

• Memorizing trigonometric values using hand gestures

• Learning to write trigonometric values

Which finger represents 0 degrees in the hand trick for sine values?

• Thumb

• Index finger

• Middle finger

• Little finger

How do you calculate the sine value using the hand trick?

• Count fingers below, take square root, divide by two

• Count fingers on both hands, take square root, divide by two

• Count all fingers, take square root, divide by two

• Count fingers above, take square root, divide by two

What is the sine value of 0 degrees using the hand trick?

• 1

• 0

• 1/2

• √3/2

What is the sine value of 30 degrees using the hand trick?

• 1/2

• 0

• √3/2

• 1

What is the sine value of 45 degrees using the hand trick?

• 0

• 1

• 1/√2

• √3/2

What is the sine value of 60 degrees using the hand trick?

• 1/2

• √3/2

• 1

• 0

What is the sine value of 90 degrees using the hand trick?

• 1/2

• √3/2

• 1

• 0

What is the sine value of 90 degrees using the hand trick?

• √3/2

• 1

• 0

• 1/2

What is the sine value of 45 degrees using the hand trick?

• 0

• 1

• √3/2

• 1/√2