(a) Given that sin²+ cos²0= 1, show that 1 + tan²0= sec²0. (b) Solve, for 0≤ 0< 360°, the equation 2 tan 0+ sec 0 = 1, giving your answers to decimal place. 11. (a) Using the identity cos(A + B) = cosA cosB - sinA sinB, prove that cos 24 = 1-2 sin² A. 10.

Q: Let sinA = 7/25 and sinB = -3/5 Solve sin(A+B)

A:

Q: Express as a single sine function: 10 cos (100t - 9°) + 10 sin (100t + 19°)

A: Given the given function is 10 cos100t - 9° + 10 sin100t + 19° Apply formula cosa-b=cosa cosb + sina…

Q: epresent 3 sin x + 6 cos x in a form A sin(x + p), use radians for p.

A:

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A: Consider the given identity

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Q: sinx=6/10 and sec x <0

A: -25/7

Q: 4 cosx-1 solve the equation 2 sin x : , giving all values of x between tan x 0° and 360°.

A: The given trigonometric equation is  2sinx = 4cosx-1tanx

Q: Find all solutions of the equation in the interval 0, 2n). (2 sinx-1)(tanx-/3)=D0 Write your answer…

A: Trigonometric Functions: Trigonometric functions can be simply defined as the functions of an angle…

Q: Find the value of x. Round your answer to the nearest tenth. 58 a 5.5 b 6.5 7.5 8.5 O O

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Q: Use a sketch to find the exact value of the expression cos (sin-1 4/5)

A: given expression: cossin-145we have to find the exact value of the expression