If sina 1/2 then cota
Web22 mrt. 2024 · Question 5 If sin A = 1/2 , then the value of cot A is (A)√3 (B) 1/√3 (C) √3/2 (D) 1 Since sin A = 1/2 ∴ cosec A = 2 Now, 1 + cot2 A = cosec2 A Putting values 1 + … WebExplanation for the correct option. Step 1: Find the value of A. Given that, sin A + cos A = 2. Divide both sides by 2 we have: ( sinA + cosA) 2 = 2 2 1 2 sinA + 1 2 cosA = 1. We know that, π π π π sin π 4 = cos π 4 = 1 2 and sin a + b = sinacosb + cosasinb. So we have.
If sina 1/2 then cota
Did you know?
Web4 jun. 2024 · Explanation: If sinA = 1 3 and 0 < A < 90 Then using sin2A +cos2A = 1 cos2A = 1 −sin2A = 1 − 1 9 = 8 9 Then cosA = ± √8 9 = ± 2√2 3 But if 0< A< 90, then the cosine is positive and cosA = 2√2 3 Answer link Alan N. Jun 4, 2024 cosA = 2√2 3 Explanation: Since 0 < A < 90o we know that ∠A is in the first quadrant. Web29 mrt. 2024 · Ex 8.1, 7 - Chapter 8 Class 10 Introduction to Trignometry (Term 1) Last updated at March 29, 2024 by Teachoo Get live Maths 1-on-1 Classs - Class 6 to 12. …
Web5 jun. 2024 · Step-by-step explanation: sin A = 1/2 we know that sin²A + cos²A = 1 so cos²A= 1 - (1/2)² cos²A= 1 - 1/4 cos²A = 3/4 cosA= √3/√4 cosA= √3/2 Now, cotA = cosA/ … WebIf sinA= 1 2, then the value of cot A is (A) √3 (B) 1 √3 (C) √3 2 (D) 1 Solution The answer is (A) Thinking Process i) First we use the formula cosθ= √1−sin2θ to get the value of cosθ ii) Now, we use the trigonometric ratio cotθ= cosθ sinθ to get the value of cotθ Given, sinA= 1 2, ∴ cosA= √1−sin2A=√1−(1 2)2
Web22 jan. 2024 · The value of $\left(sin^{2}7\frac{1}{2}^{0}+sin^{2}82\frac{1}{2}^{0}+tan^{2}2^{0}tan^{2}88^{0}\right)$ 5. A man walks 1 km on 1st day , 2 km on 2nd day , 3 km on 3rd day and so on . The total distance the man covers in 10 days is. 6. If sin8 θ + cos8 θ - 1 = 0, then what is the … Web2 jun. 2024 · Other Questions. 1. A train is running at a speed of 116 kms/hr. The distance covered by the train in meters in 18 secs is. 2. If tan (θ - 30) = √3, θ is any angle then find the value of sinθ + cosθ.
Web21 apr. 2024 · If sinA=1/2, then what is the value of cotA? - 9438711. SmartyAyushSingh SmartyAyushSingh 21.04.2024 Math Secondary School answered • expert verified If …
Web8 mrt. 2024 · If sinA + cosA = √2, then evaluate tanA + cotA Ford Tech 4.01K subscribers Subscribe 424 views 1 year ago if sina+cosa=√2 then prove that tana+cota=2 If sinA+cosA=root 2... doheny enterprises pleasant prairie wiWeb28 okt. 2013 · Given sinA – cosA = 1/2 squaring on both the sides, we get (sinA – cosA)2 = (1/2)2 ⇒ sin2A + cos2A – 2sinA cosA = 1/4 ⇒ 1 – 2sinA cosA = 1/4 ⇒ 1 – (1/4) = 2sinA cosA ⇒ 2sinA cosA = 3/4 ∴ sinA cosA = 3/8 → (1) (sinA + cosA)2 = (sinA – cosA)2 + 4sinA cosA = (1/2)2 + 4 (3/8) = (1/4) + (3/2) = 7/4 (sinA + cosA) = √ (7/4) = (√7)/2 . doheny drive west hollywoodWeb28 aug. 2024 · Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and … fairhill farm country vacation rentalsWebIf sin A = 1/2 , then the value of cot A is a. √3 b. 1/√3 c. √3/2 d. 1. Solution: Given, sin A = 1/2. We have to find the value of cot A. We know that sin A = opposite / hypotenuse. … fairhill farmWeb24 aug. 2024 · Correct Answer - A Given, sinA= 1 2 1 2 ∴ cos A = √1 − sin2 A = √1 − ( 1 2)2 ∴ cos A = 1 - sin 2 A = 1 - ( 1 2) 2 = √1 − 1 4 = √ 3 4 = √3 2 = 1 - 1 4 = 3 4 = 3 2 [ ∴ sin2 … fairhill farm mulbringWebIf cosecA=2 then obtain the value of cotA+sinA/1+cosA Get the answer to this question by visiting BYJU S Q&A Forum. doheny eye center fountain valley caWeb28 aug. 2024 · (1) We know that, … (2) To find the value of cos A. We have the equation, sin 2 θ +cos 2 θ =1. So, cos θ = √(1-sin 2 θ) Then, cos A = √(1-sin 2 A) … (3) cos 2 A = … fair hill farm md