If csc thetha = 2, find the exact value of cos theta. Write your answer as an integer or simplified fraction. Please provide steps if possible so I may better understand.

Q: explain with pictures, words or equations what the equation tan (pi/4)= 1 means and why it is true

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Q: How many radians is 191°? Give the exact answer in simplest form

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Q: Find the exact value of expression sin 240°. Do not use a calculator.

A: Given: sin240∘ we know that  sin180∘+θ=-sinθ

Q: How was theta and phi determine?

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Q: x/3  radians is equivalent to 60°. True   False

A: Given that x/3  radians is equivalent to 60°.

Q: Why do we use radians rather than degrees in Grade 12 math? You may use examples to explain your…

A: We use radians rather than degrees because of below reasons.

Q: Write cos ⁡ ( θ ) in terms of sin ⁡ ( θ ) if θ is an angle in quadrant II.

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Q: Use your calculator to find, correct to 4 decimal places: a cos 74° 6 sin 132° c tan97°.

A: Given trigonometric ratios are cos 74° sin 132° tan 97°

Q: Without the use of a calculator, determine the value of: tan120°. sin300°. sin135° sin120°.cos225°

A: The answer is found in step-2.

Q: Find EXACT values (simplified fractions and no decimals) of the following: A. cos 225° = B. tan 3 C.…

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Q: how do i find the radius of 49 pi?

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Q: Find the exact value of the expression sin 495°. Do not use a calculator.

A: Consider sin495∘

Q: Approxamate the value to the nearest thousandth Tan 78°

A: From the given problem:   tan78°   So,   tan78° = 4.704630109

Q: 14. Find the value of each variable. y 45° 5 X x = y =

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.