tan(360°+0)-cos(-0) cos(360° – 0) (a) sin(720°– a)- tan(-a) (c) sin(720° +a)- tan(360° – a) sin(180° – A)-cos(-A) (e) sin(360° – A)-cos(A–180°)

Q: sin (7π/6) + cos (3π/2)

A: Given,

Q: Vhich of the following IS an identity? sin( – x) = cos(90° – x) 1 O tan( – x) cot(90° – x) O…

A: Identity is satisfied by each and every value of domain of a function and always holds.

Q: sin 2x 10. Simplify 1-cos x (a) 2cot x (1+ cos x) (b) sin 2x (1 + cos x) (c) sin 2x (d) – 2 tan x (1…

A:

Q: sin(a)= 4/5 and cos (B)= -7/25.  Find sin(2a) and cos (a-B)  ,with pi/2<a<pi and pi<B<3pi/2

A:

Q: Express cos (a) in terms of cos(2a). Express sin (a) in terms of cos(2a). cos² (a) COS sin (a)

A: (a) We have to express cos2α in terms of cos2α.

Q: Cos 2x cos X-sin 2x sin x=radical 3/2. Use 0

A:

Q: Find the value of cos (570)sin (510) + sin (- 330)cos (- 390)

A:

Q: Evaluate / cos(a0)d0 where a is a real number, and C is an arbitrary constant. sin(æ0) + C O a…

A: Solution-

Q: Multily    (a) (a+b)  2 (cos theta - sin theta ) 2

A:

Q: Find the exact value of each expression, if it is defined. (If an answer does not exist, enter DNE.)…

A:

Q: Does cos (π/2 - x) = cos (x - π/2)? Explain with examples

A:

Q: 25. sec (tan11 + csc¯l 1) →26. sec (cotl V3 + csc(-1)) ((2-) )- sec (-)) (The answer is not -a/6.)…

A: Trigonometry is the study of the relationship between the sides and angles of a right-angled…

Q: True or False? "A social choice function that always chooses some predetermined option x is…

A: As per the company rule, we are supposed to solve the first three sub-parts of a multi-parts…

Q: sin x= 6/7, cos > 0, sin y = -1/5, and cos y < 0 How do I find sin(x + y), cos(x + y), and tan(x +…

A: Given that  sinx=67, cosx&gt;0,siny=-15and cosy&lt;0. We know that…

Q: Find the exact value of expression tan-1(-1).

A: Inverse circular function: Exact value of tan-1(-1).…

Q: sin x − 1 = cos x − 1

A:

Q: Rewrite cos ( x –) in terms of sin(x) and cos(x) 3

A: we know that cos(x-y)=cos(x)cos(y)+sin(x)sin(y)

Q: (sin(t) + cos(t))? – (sin(t) – cos(t))? Simplify to a single trig function (csc(t))(2 sin(2t))

A:

Q: cos2 s 2t to find L{sin² t} (1) (a) Use the identity sin? t = (b) Use (a) and the identity cos 2t =…

A: we need to find the Laplace transformation of sin2t and cos2t  using given identities.

Q: find x sin-1(1-x)-2sin-1x=90 degree

A: sin-1(1-x)-2sin-1x=90 degree

Q: cos(a) = -1/4 where Pi/2 < a < Pi sin(a + Pi/4) =

A:

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.