WebThe app is greate. I used photomath, but it didn't work for some problems, and helped me pass the last year, a lifesaver but could use more options for solving I'd give it a 9, this app is really useful for maths problems, i love this app,it doesn't disappoint, it helps me to solve the challenging mathematical expressions. Web23 nov. 2016 · This question do not have a particular solution. Like if we take A=45 degree and B=45 degree , then equation Sin2A +Cos2B =1 satisfies. And we get value of Cos2A + Sin2B =1 But if we take A= π/12 and B=π/6, then equation Sin2A +Cos2B =1 satisfies. And we get value of Cos2A + Sin2B =√3

If A = 30o, then prove that : 2 cos2 A - 1 = 1 - 2 sin2A - Shaalaa.com

WebSolution: Sine is a trigonometric function of an angle defined as the ratio of the length of the perpendicular (opposite) side to the hypotenuse. A = 30°. 2A = 2 × 30° = 60°. Thus, sin … WebAssertion (A): cos 2 A – sin 2 A = 1, tan 2 A – sec 2 A =1 are trigonometric identities. Reason (R): An equation involving trigonometric ratios of an angle is called a trigonometric identity. It is true for all the values of the angles involved. Both (A) and (R) are true and (R) is the correct explanation of (A) Both (A) and (R) are true ... goodwill castle rock address

If Sin2A + Cos2B =1 then find the value of Cos2 A+Sin2 B

Websin 2 A − sin A = sin A ⋅ ( 2 cos A − 1) So you'd like to find a factor sin A to cancel from the numerator and express the remainder in terms of cos A - likely possible because the numerator is an odd function. sin 3 A = sin A cos 2 A + cos A sin 2 A = sin A ⋅ … WebIf sin (A+B) = 1 and cos (A-B) =√3/2, '0' ≤ (A+B) ≤ 90, A ≤ B, then find the value of A and B. Question 6. If sin A = ¾ Find cos A and tan A. Question 7. If cos A=1/2, sin B =1/2 then value of A +B a) 30. b) 60. c) 90. d) 120. Question 8. If sin (X + Y) = cos (X – Y) =1 then a) X = Y = 90. b) X = Y = 0. c) X = Y = 45. d) X = 2Y ... Web30 mrt. 2024 · Get live Maths 1-on-1 Classs - Class 6 to 12 Book 30 minute class for ₹ 499 ₹ 299 Transcript Question 12 sin A + cos B = 1, A = 30° and B is an acute angle, then find the value of B.Given sin A + cos B = 1 Putting A = 30° sin 30° + cos B = 1 𝟏/𝟐 + cos B = 1 cos B = 1 − 1/2 cos B = 1/2 cos B = cos 60° Thus, B = 60° goodwill cave spring roanoke va