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(sin150^(@)-5cos300^(@)+7tan 225^(@))/(t...

`(sin150^(@)-5cos300^(@)+7tan 225^(@))/(tan 135^(@)+3sin 210^(@))`

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The value of (sin300^(@).tan330^(@).sec420^(@))/(tan135^(@).sin210^(@).sec315^(@)) is

Find the value of (sin30^(@).tan330^(@).sec420^(@))/(tan135^(@).sin135^(@).sin210^(@)sec315^(@))

sin 300^@ cosec 1050^@ - tan (-120^@)

Find the values of: (i) tan (-30^(@)) (ii) sin 120^(@) (iii) sin 135^(@) (iv) cos 150^(@) (v) sin 270^(@) (vi) cos 270^(@)

Find the values of : (i) tan (-30^(@)) (ii) sin 120^(@) (iii) sin 135^(@) (iv) cos 150^(@) (v) sin 270^(@) (vi) cos 270^(@)

sin120^(@)=sin(180^(@)-60^(@))=sin60^(@)=(sqrt(3))/(2) cos150^(@)=cos(180^(@)-30^(@))=-cos30^(@)=(-sqrt(3))/(2) tan172^(@)=tan(180^(@)-8^(@))=-tan8^(@)=-0.1405

Evaluate : 2((cos65^(@))/(sin25^(@)))-(tan20^(@))/(cot70^(@))-sin90^(@)+tan5^(@)tan35^(@)tan60^(@)tan55^(@)tan85^(@)

sin225^(@)=sin(180^(@)+45^(@))=-sin45^(@)=-(1)/(sqrt(2)) cos246^(@)=cos(180^(@)+66^(@))=-cos66^(@)=-0.4067 tan211^(@)=tan(180^(@)+31^(@))=tan31^(@)=0.6009 .

Find the value of (a) cos 120^(@) (b) sin 240^(@) (c) tan (-60^(@)) (d) cot 300^(@) (e) tan 330^(@) (f) cos (-60)^(@) (g) sin (-150)^(@) (h) cos ( -120)^(@)

Evaluate : sin^(2)25^(@)+sin^(2)65^(@)+sqrt(3)tan5^(@)tan15^(@)tan30^(@)tan75^(@)tan85^(@)

ICSE-TRIGONOMETRICAL FUNCTIONS -Exercise 4(d)
  1. (tan(-theta))/(sin(540^(@)+theta))

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  2. (sin(90^(@)-theta)sec(180^(@)-theta)sin(-theta))/(sin(180^(@)+theta)co...

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  3. (sin150^(@)-5cos300^(@)+7tan 225^(@))/(tan 135^(@)+3sin 210^(@))

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  4. If sin (7 phi+9^(@))=cos2phi, find a value of phi.

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  5. Find the values of theta lying between 0^(@) and 360^(@) when sin th...

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  6. Find the values of theta lying between 0^(@) and 360^(@) when tan th...

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  7. Find the values of theta lying between 0^(@) and 360^(@) when sec th...

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  8. Find the values of theta lying between 0^(@) and 360^(@) when sin th...

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  9. Find the values of theta lying between 0^(@) and 360^(@) when tan th...

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  10. Find the values of theta lying between 0^(@) and 360^(@) when sin th...

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  11. Find the values of theta lying between 0^(@) and 360^(@) when costhe...

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  12. If 0^(@)lt theta lt 90^(@) and cos theta=(4)/(5) find the values of ...

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  13. If 0^(@)lt theta lt 90^(@) and cos theta=(4)/(5) find the values of ...

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  14. If 0^(@)lt theta lt 90^(@) and cos theta=(4)/(5) find the values of ...

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  15. If 0^(@)lt theta lt 90^(@) and cos theta=(4)/(5) find the values of ...

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  16. Find six angles for which sin theta=-(sqrt(3))/(2).

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  17. Find all the angles between 0^(@) and 720^(@) whose tangent is -(1)/(s...

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  18. Find the values of theta between 0^(@) and 360^(@) which satisfy the e...

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  19. Find the values of theta between 0^(@) and 360^(@) which satisfy the e...

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  20. If tan theta=0.4, when theta lies between 0^(@) and 360^(@), write dow...

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