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2sinA+5cosA=4. Prove that cosA=1/2

  1. 2sinA+5cosA=4. Prove that cosA=1/2
    1. answers icon 1 answer
    2. Shambu asked by Shambu
    3. views icon 601 views
  2. prove that 2sinA + 1 / cosA+sin2A=secA
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    2. cindy asked by cindy
    3. views icon 844 views
  3. Prove that. √seca+2sina/seca-2sina=Sina+cosa/sina-cosa
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    2. Aditya asked by Aditya
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  4. I need to prove that the following is true. Thanks.csc^2(A/2)=2secA/secA-1 Right Side=(2/cosA)/(1/cosA - 1) =
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    2. Dirk asked by Dirk
    3. views icon 966 views
  5. M=sina+cosaN=seca+coseca M^2/2M^2-N^2=cosa^2/2-2sina^2-coseca^2
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    2. Arshad asked by Arshad
    3. views icon 147 views
  6. 5cosA+3=0 and180<A<360, without using a calculator and with the aid of diagram, determine the value of SinA+ cosA
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    2. Anonymous asked by Anonymous
    3. views icon 250 views
  7. Prove that [sinA/(1-cosA)-(1-cosA)/sinA]*[cosA/(1+sinA)+(1+sinA)/cosA]=4cosecAI the second part as 2 secA
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    2. Agastya asked by Agastya
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  8. If 5cosA+3=0 and 180(degrees)<A<360(degrees)Determine 1. Tan^2A And 2. SinA over cosA
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    2. Kaylee asked by Kaylee
    3. views icon 759 views
  9. If 5cosA+3=0 and 180(degrees)<A<360(degrees)Determine 1. Tan^2A And 2. SinA over cosA
    1. answers icon 2 answers
    2. Kaylee asked by Kaylee
    3. views icon 587 views
  10. If 5cosA+3=0 and 180(degrees)<A<360(degrees)Determine 1. Tan^2A And 2. SinA over cosA
    1. answers icon 1 answer
    2. Kaylee asked by Kaylee
    3. views icon 544 views