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State whether the following are true or ...

State whether the following are true or false.Justify your answer.(iii)cos A is the abbreviation used for the cosecant of angle A.

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R G PUBLICATION-INTRODUCTION TO TRIGONOMETRY-EXERCISE
  1. State whether the following are true or false.Justify your answer.(i)T...

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  2. State whether the following are true or false.Justify your answer.(ii)...

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  3. State whether the following are true or false.Justify your answer.(iii...

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  4. State whether the following are true or false.Justify your answer.(iv)...

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  5. State whether the following are true or false.Justify your answer.(v)s...

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  6. Evaluate the following:(i)sin 60^@ cos30^@+sin 30^@ cos 60^@

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  7. Evaluate the following:(ii)2 tan^@ 45^@+cos^2 30^@-sin^2 60^@

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  8. Evaluate the following:(iii)Cos45^@/(Sec30^@+Cosec30^@)

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  9. Evaluate the following:(iv)(Sin30^@+tan45^@-Cosec60^@)/(Sec30^@+Cos60^...

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  10. Evaluate the following:(v)(5cos60^@+4Sec30^@-tan^2 45^@)/(Sin^2 30^@+C...

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  11. Choose the correct option and justify your choice:(i)(2 tan 30^@)/(1+t...

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  12. Choose the correct option and justify your choice:(ii)(1-tan^2 45^@)/(...

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  13. Choose the correct option and justify your choice:(iii)sin 2A=2sin A i...

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  14. Choose the correct option and justify your choice:(iv)(2 tan 30^@)/(1-...

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  15. If tan(A+B)=sqrt3 and tan(A-B)=1/sqrt3:find A and B.

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  16. State whether the following are true or false.Justify your answer:(i)s...

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  17. State whether the following are true or false.Justify your answer:(ii)...

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  18. State whether the following are true or false. Justify your answer:(ii...

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  19. State whether the following are true or false.Justify your answer:(iv)...

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  20. State whether the following are true or false.Justify your answer:(v)c...

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