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Prove that tan^2 60^@+4cos^2 45^@+3sec^2...

Prove that `tan^2 60^@+4cos^2 45^@+3sec^2 30^@+5cos^2 90^@=9`

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A N EXCEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-QUESTION BANK
  1. What is the value of tan30^@+2tan60^@+4tan120^@+8cot240^@? Also verify...

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  2. Match the following:

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  3. Prove that tan^2 60^@+4cos^2 45^@+3sec^2 30^@+5cos^2 90^@=9

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  4. Suppose theta is an acute angle and tantheta+cot theta=2 Derive a quad...

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  5. Suppose theta is an acute angle and tantheta+cot theta=2 solve the gi...

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  6. Suppose A and B are angles lying in the first quadrant such that tanA=...

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  7. Suppose A and B are angles lying in the first quadrant such that tanA=...

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  8. Suppose A and B are angles lying in the first quadrant such that tanA=...

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  9. Which of the following are true if theta is in first quadrant tantheta...

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  10. Which of the following are true If theta is in 3rd quadrant sintheta=1...

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  11. Which of the following are true? for some angle theta: sintheta=4

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  12. Which of the following are true ?for some angle theta: tantheta=5

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  13. Which of the following are true in the 1st quadrant all trignometric r...

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  14. If tanA=18/17 and tanB=1/35 prove that tan(A-B)=1

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  15. If tan(A-B)=1 what is the value of A-B?

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  16. If tan(A+B)=(tanA+tanB)/(1-tanAtanB) , then by applying the result tan...

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  17. If tanA+tanB=a and cotA+cotB=b prove that cotA cotB=b/a

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  18. If tanA+tanB=a and cotA+cotB=b.Prove that cot(A+B)=(1/a)-(1/b)

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  19. Complete the following and find the value of a1 , a2. . . a7 and b1 , ...

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  20. Prove that sin120^@ cos330^@ +cos240^@ sin330^@=1

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