Resonance AITS

JEE Mains 2015 Questions › Algebra questions › Resonance AITS

If |z-25i|â‰¤15 then |max Arg. (z)-min Arg. (z)| equals to..?

#Mathematics #Algebra

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7 Answers

106

Asish Mahapatra ·2009-11-08 06:15:07

its the same as find the angle between the tangents drawn from (0,0) to the circle of radius 15 and centre (0,25)

using a little bit of geo, u shud get sin^-1(24/25)

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iitimcomin ·2009-11-08 06:24:32

2 sin inv 15/25 ....... im gettin ..... how did u get that stuff asish ???

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106

Asish Mahapatra ·2009-11-08 06:26:14

use the formula for 2sin^-1x

its the same basically.

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iitimcomin ·2009-11-08 06:27:54

ayoo... sorry .. im half asleep ....

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rahuliit ·2009-11-12 03:48:19

please upload the paper help others dont be selfish

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rahuliit ·2009-11-12 03:49:27

to all giving FIITJEE OR BT tests online plz upload the paper here

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Unicorn--- Extinct!! ·2009-11-12 06:13:11

Yes...correct!! [1]Thanx

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω