If A is obtuse, which is positive? a) sin A b) cos A c) tan A d) none a C

Q: .)_1_.  =______     Cos0 B.) sin20+_____=1   C.) cos0       sin0   D.)  _ 1          Tan0 E.)…

A: We have to find out

Q: Which of the following equations is an identity? There is only one in the list. a) æ² + y? = r² b)…

A:

Q: and are coterminal. True/Fals 4

A: Determine whether the statements are true or false. a. 25π4,π4 b. tan-1x=1tanx c. cos-1cos5π3=5π3 d.…

Q: O Solve 2cose- 12=0 if OLe< ZT. Giveall ansuers O as exact values in vadian.

A: see 2nd step.

Q: From the figure given below, given that < B is a right angle, the value of sin C is : A Select one:…

A: We have to find the value of sinC

Q: | 6) If cos 0 and tan 0 is negative, find sin 0 and 17 cot 0.

A: To find the value of the following,

Q: At the 1987 annual meeting of the National Council of Teachers of​ Mathematics, the given system was…

A:

Q: (Text' . | Find a ⋅ b if |a| = 5, |b| = 4, and the angle between a and b is radians. 8 • a b =

A: The formula for the dot product is : a⋅b = ∣a∣ ∣b∣ cos(θ)a⋅b  = 5* 4 *cos(π/8)a⋅b   = 18.4776…

Q: secx - I 10.) sin*x = 11.) 1- CSC X =- 2tan x sec x %3D sec?x I+ CsC X

A:

Q: Let a be angle such that cos a = -- and sin a > 0. What is the exact value of sin a?

A: Only 2nd quadrant is the only region where cosα is -ve and sinα is +ve

Q: 2. Find the exact value of each quantity: 11T a) sin 6 m7 b) sin 3 3T c) cot 2 57 d) tan 6 11m e)…

A: Since you have posted a question with multiple sub parts, we willprovide the solution only to the…

Q: snip

A: For any triangle we have to derive the formula: a=b cos C+c cos B We know sine rule, asin A=bsin…

Q: plve the following eq a) 2 sin 2x = 1

A: Given,      (a)  2sin 2x=1

Q: ght, h, in metres, above the ground of a car as a Ferris wheel rotates ca. ed by the function h(t) =…

A: In this question, the radius of the Ferris wheel is obtained from the trigonometric equation of…

Q: 17) csc 0 18) sec 0 315° V3 B) А) —1 B) C) D) 0 C) -V2

A: We know that sin(-thetha)=-sin thetha Cos(-thetha)=cos thetha