What is the exact value of $$\cos 135$$? Open in App. Solution. Verified by Toppr $$ cos 135^o=cos(45^o+90 ...

Click here👆to get an answer to your question ️ dfraccos 135 circ cos 120 circ cos 135 circ cos 120

Trigonometric identities are tools that we can use to find exact values of trigonometric functions by putting them in terms of other well-known trigonometric functions. One such trigonometric identity is the angle sum identity, and we can use it to find the …

Click here:point_up_2:to get an answer to your question :writing_hand:prove thatdfraccos 135ocos 120ocos 135ocos 120o32sqrt2

Use a diagram to explain why {eq}\sin(135) = \sin (45) {/eq}, but {eq}\cos (135) \neq \cos (45) {/eq}. Sine and Cosine on the Unit Circle: The trigonometric functions sine and cosine are introduced in terms of the ratios of sides in a right triangle, but …

$$\cos 135^\circ $$ Trigonometric Ratios: Trigonometric ratios are computed by taking the ratios of the sides of a right-angled triangle (base, perpendicular, and hypotenuse).

Given the product p of sines of the angles of a triangle and the product q of their cosines, find the cubic equation whose coefficients are functions of p and q and whose roots are the tangents of the angles of the triangle.

Find the value of tan 45 o + 2 cos 60 o – sec 60 o. Solution: From the trigonometry table, tan 45 o = 1, cos 60 o = ½ and sec 60 o = 2. Therefore, tan 45 o + 2 cos 60 o – sec 60 o = 1 + 2 × ½ – 2 = 1 + 1 – 2 = 0. Example 2: Find the value of sin 75 o. Solution: We can write, sin 75 o = sin (45 o + 30 o) = sin 45 o cos 30 o + cos 45 o ...

Answer to: Find the product. Leave the result in trigonometric form. (Let 0 \leq \theta less than 360^{\circ}.) (frac{8}{5}(cos(135^{\circ}) + i...

Then, represent the complex number graphically. 7(cos 0 + i sin 0) Find the standard form of the complex number. Then, represent the complex number graphically. 9.75(cos(280 30') + i sin(280 30')) Find the standard form of the complex number, then represent the complex number graphically: 5 (\cos 135^\circ + i\sin 135^\circ).