7. Use your calculator to find the trigonometric ratios sin 79°, cos 47°, and tan 77°. Round to the nearest hundredth. sin 79° = 0.98, cos 47° = 0.68, tan 77° = 4.33 b. sin 79° = -0.99, cos 47° = -0.44, tan 77° = -32.27 sin 79°= 0.68, cos 47° = 0.98, tan 77° = 4.33 d. sin 79° = –0.44, cos 47° =-0.99, tan 77° = -32.27 a. с.

Q: sin120o = ..............,cos240 o =...................

A:

Q: When we evaluate sin 2, how do we know whether to set the calculator todegree or radian mode?

A: Set the calculator to radian mode to evaluate sin 2.

Q: 16 ft. 8 ft. 22 ft. 12 ft. Suppose this is the shape of a swimming pool for which you must buy a…

A:

Q: If alpha= -163 degrees and beta =31 degrees, what is the measure of theta?

A: Given:

Q: Find tan -75° without using a calculator. [?]-V] |

A:

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: 2 tan15° 1-tan 15°

A:

Q: CI Use your calculator to find the sine of 36°. O A sin 36 ° » 0.5878 sin 36 ° » 0.809 C sin 36 ° »…

A: We have to use calculator to find the sin of 36°

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

A: Consider sin495∘

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.