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: 10. Sec -405 degrees 12. Cot -90 degrees 14. cos 360 degrees  16. sin -225 degrees

A: 10)

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

A:

Q: Determine the tan 330o by first finding the tangent of its reference angle and then adjusting the…

A: Given : tan(330°)

Q: 5) Find the exact values. Do not use a calculator. a. cos 60° + tan 45° – sin 30° b. csc- 4 + sin: 2

A:

Q: whats tan 0 and tan 39

A: It is not tan 0. It is tan θ.θ is the angle between the Base and the Hypotenuse of the Right angle…

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: Use double- and half-angle formulas to find the exact value of the expression tan(π/12).

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: Sketch the angle and write the sec and tan of the angle if the terminal side of the angle passes…

A: NOTE: Refresh your page if you can't see any equations. . the given point is so here we have

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: standard

A: please refer to the image below

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: there are sin, cos and tan on the calculator keys. Can you tell how can you get the value of tan?

A:

Q: Determine the exact value of(sin45°)(cos135°)+(sin240°)(cos30°). Be sure to draw a relevant diagram…

A: Value of the given expression can be found by using following results.  cos…

Q: Find the exact value of the trigonometric function cot 5π/4. Do not use a calculator.

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°

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.