WebStep 1 : Use the triginometric identities for angle transformation Given , cos(α+β)=0 ⇒cos(α+β)=cos90[∵cos90 ∘=0] ⇒α+β=90 ⇒α=90−β ∴ sin(α−β) =sin(90−2β)=cos2β [∵sin(90−θ)=cosθ] Hence , option (B) is the correct answer Solve any question of Introduction to Trigonometry with:- Patterns of problems > Was this answer helpful? 0 0 … WebIf 2sin2β – cos2β = 2, then β is. 3 views, 0 likes, 0 loves, 0 comments, 0 shares, Facebook Watch Videos from विज्ञान दर्पण: If 2sin2β – cos2β = 2, then β is ...
If cos (α + β) = 0, then sin (α - β) can be reduced to - teachoo
Web6 sep. 2024 · If 5 tanβ =4, then 5 sinβ - 2 cosβ / 5 sinβ + 2 cosβ = asked Nov 26, 2024 in Mathematics by AmitMukherjee (54.4k points) cbse; ... (β – α), –cosβ), Q(cos(β – α), sinβ) and R(cos(β – α + θ), sin(β – θ)), where 0 < α, β, θ < π/4. Then. asked Dec 6, 2024 in Straight Lines by Shrinivas (56.4k points ... Web17 jan. 2024 · Explanation: Left Hand Side: Use the identity sin2β +cos2β = 1 cos2β− sin2β = (1 −sin2β) −sin2β = 1 − sin2β − sin2β = 1 − 2sin2β ∴ = Right Hand Side Answer link charter club flannel sheets
If 2sin2β cos2β = 2, then β is (a) 0ᵒ (b) 90ᵒ (c) 45ᵒ (d) 30ᵒ - Maths ...
Web3 views, 0 likes, 0 loves, 0 comments, 0 shares, Facebook Watch Videos from विज्ञान दर्पण: If 2sin2β – cos2β = 2, then β is WebIf 2sin 2 β - cos 2 β = 2, then β is 90°. Explanation:- 2sin 2 β - cos 2 β = 2 Then 2 sin 2 β - (1 - sin 2 β) = 2 3 sin 2 β =3 or sin 2 β =1 β is 90° Concept: Trigonometric Identities Is … Web38 If 2 and ½ are the zeros of px2+5 +r, then (a) p = r = 2 (b) p = r = - 2 (c) p = 2, r= -2 (d) p = -2, r= 2 The circumference of a circle is 100 cm. The side of a s 1 39 quare inscribed in the circle is D ¥ cm E cm F ¥ cm G ¥ cm The number of … charter club flannel pajamas women