Sin 75 Cos 75. Answer (1 of 4) \sin^2 75^\circ = (\sin 75^\circ)^2 =[ \sin (45^\circ + 30^\circ)]^2 =\left[\sin 45^\circ \cos 30^\circ + \cos 45^\circ \sin 30^\circ\right]^2 =\left 202010292020032520180725.

Solved Solve The Problem Leave Your Answer In Polar Form 2 Chegg Com sin 75 cos 75
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sin (75)cos (15) Symbolab Identities Pythagorean Angle Sum/Difference Double Angle Multiple Angle Negative Angle Sum to Product Product to Sum.

How do you simplify sin 15° cos 75° + cos 15° sin 75

Best answer Expanding the determinant we get cos 15° cos 75° sin 15° sin 75° = cos (15° + 75° ) = cos 90° = 0 [since cos (A + B) = cos A cos B – sinA sin B] Please log in or register to add a comment ← Prev Question Next Question →.

Evaluate: (cos15°, sin15°), (sin 75°, cos 75

sin 15° cos 15° cos 75° sin 75° = sin(90° 75°) cos15° cos 75° sin (90° 15°) = cos 75° cos 15° cos 75° cos 15° = 0.

What is the value of cos 75°? Maths Q&A

Ex 33 5 Find the value of sin 75° sin 75° = sin (45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = 1/√2 × √3/2 + 1/√2 × 1/2 = 1/√2 (√3/2 ” + ” 1/2) = (√???? + ????)/ (????√????) sin (x + y) = sin x cos y + cos x sin y Putting x = 45° and y = 30°.

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Trigonometry 1 Answer P dilip_k Oct 21 2017 sin8(75°) − cos8(75°) (sin4(75°) − cos4(75°))(sin4(75°) +cos4(75°) = (sin2(75°) + cos2(75°))(sin2(75°) −cos2(75°))(sin4(75°) +cos4(75°) = 1 ⋅ ( −cos(2 ⋅ 75°))((sin2(75°) + cos2(75°))2 −2sin275 ⋅ cos275) = ( − cos(180 − 30))(1 − 1 2(2sin75 ⋅ cos75)2).