हिंदी

In the given figure, ∠PQR = 90°, ∠PQS = 90°, ∠PRQ = α and ∠QPS = θ Write the following trigonometric ratios. (i) sin α, cos α, tan α (ii) sin θ, cos θ, tan θ - Geometry

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प्रश्न

In the given figure, ∠PQR = 90°, ∠PQS = 90°, ∠PRQ = α and ∠QPS = θ Write the following trigonometric ratios.

  1. sin α, cos α, tan α
  2. sin θ, cos θ, tan θ

योग

उत्तर

(i) In ∆PQR,

sin α = `"Opposite Side Of ∠PRQ"/"Hypotenuse"= "PQ"/"PR"`

cos α = `"Adjacent side of ∠PRQ"/"Hypotenuse" = "RQ"/"PR"`

tan α = `"Opposite side of ∠PRQ"/"Adjacent side of ∠PRQ" = "PQ"/"RQ"`

(ii) In ∆PQS,

sin θ = `"Opposite Side Of θ "/"Hypotenuse" = "QS"/"PS"`

cos θ = `"Adjacent side of θ"/"Hypotenuse" = "PQ"/"PS"`

tan θ = `"Opposite side of θ"/"Adjacent side of θ" = "QS"/"PQ"`

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अध्याय 8: Trigonometry - Practice Set 8.1 [पृष्ठ १०४]

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बालभारती Geometry (Mathematics 2) [English] 9 Standard Maharashtra State Board
अध्याय 8 Trigonometry
Practice Set 8.1 | Q 4. | पृष्ठ १०४
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