4. Chord KO and secant PL intersect at N. What is mZKNL? (A) 20° (B) 30° (C) 60° (D) 80° K 60° M N. 100°

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A: Topic- Triangle

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Q: 6. Find sec 8, given Ihat tan e 3 and e is in quadrant IlI. %3D

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Q: Find the exact value using half-angle formulas. 7 cos(7π/8)

A: Recall the following facts.

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Q: Question in image.

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Q: sin B  =  ​       cos A  =  ​       (b)    sin A, cos B sin A

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Q: 4. What is the smallest positive degree angle measure equivalent to sin- (0.391)? 104° 23° 38° 229°

A: Please rate

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Q: In right ∆QRS, Angles Q and R are the acute angles. If tan Q = √51/7, determine cos R.

A: We have used the Pythagoras Theorem in this question.

Q: waht is the exact value using half angle formula of 1. sin(pi/8) 2.cos(-11pi,12) 3. tan (-3pi/8)

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.