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If sinx =3/5 and x lies in the 2nd quadr...

If sinx =`3/5` and x lies in the 2nd quadrant find the values of the other five trignometric functions.

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A N EXCEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-QUESTION BANK
  1. The minute hand of a big clock in 36 cms long how many cms does the ex...

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  2. Find the value of the other five trignometric functions if cosx=(-1/2)...

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  3. If sinx =3/5 and x lies in the 2nd quadrant find the values of the oth...

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  4. If cotx=3/4 and x lies in the 3rd quadrant find the values of the othe...

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  5. If secx=13/5 and x lies in fourth quadrant then find the values of the...

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  6. If tanx=-5/12 and x lies in second quadrant then find the values of th...

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  7. Find the value of sin765^@

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  8. Find the value of cosec(-1410^@)

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  9. Find the value of tan((19pi)/3)

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  10. Find the value of sin((-11pi)/3)

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  11. Find the value of cot((-15pi)/4)

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  12. If sinalpha=15/17 , cosbeta=12/13 and alpha and beta are in the first ...

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  13. If tanA=a/(a+1) and tanB=1/(2a+1).prove that A+B=45^@ ; ane(-1/2) and ...

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  14. Show that sin(45^@+A)cos(45^@-B)+cos(45^@+A)cos(45^@-B)=cos(A-B)

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  15. If A+B=pi/4 show that (1+tanA)(1+tanB)=2

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  16. Prove that tan70^@=tan20^@+2tan50^@

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  17. Prove that tan225^@ cot405^@+tan675^@ cot315^@=2

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  18. Prove that (sinA+sin3A+Sin5A)/(cosA+cos3A+cos5A)=tan3A

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  19. Prove that (cosA-cosB)^2+(sinA-sinB)^2=4sin^2((A-B)/2)

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  20. Prove that (sin(3A)/sinA)+(cos(3A)/cosA)=4cos2A

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