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If tan (theta + 15^@) = sqrt3, find the ...

If `tan (theta + 15^@) = sqrt3`, find the value of `sin theta + cos theta`.

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UNITED BOOK HOUSE-HATI HIGH SCHOOL-EXERCISE
  1. If the ratio of heights and the ratio of base circumference of two rig...

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  2. Convert 83.12^@ into degrees, minutes and seconds.

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  3. If tan (theta + 15^@) = sqrt3, find the value of sin theta + cos theta...

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  4. If the mean of the table is 8, then find the value of P.

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  5. A man deposited Rs 1,87,000 for his son of 12 yrs. Age and daughter of...

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  6. The price of any machine decreased by 10% in each year. If the price o...

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  7. The unit digit of a two digit number exceeds the tens digit by 6 and t...

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  8. Solve: (x+2)/(x-2)-((x-2)/(x+2))=5/6

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  9. If (x^3+y^3) alpha(x^3-y^3) prove that (x^2+y^2) alpha(x^2-y^2).

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  10. If x= (sqrt7+sqrt3)/(sqrt7-sqrt3) and xy = 1, find the value of (x^2+3...

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  11. If a^2/(b+c)=b^2/(a+c)=c^2/(a+b)=1, then show that 1/(1+a)+1/(1+b)+1/(...

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  12. If x/y= (a+2)/(a-2) show that (x^2-y^2)/(x^2+y^2)=(4a)/(a^2+4)

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  13. State and prove Pythagoras theorem.

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  14. Prove that opposite angles of a cyclic quadrilateral are supplementary

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  15. AB and CD are two chords of a cricle. Extended BA and CD intersect at ...

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  16. AD is a median of triangleABC. A straight line parallel to BC intersec...

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  17. Draw a triangle whose one of the side is 7.2 cm and adjacent angles of...

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  18. Draw a rectangle having sides 10 cm and 5 cm. Now draw a square whose ...

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  19. One of the acute angle of a right angled triangle is 30^@. Find the o...

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  20. If tan theta = 3/4 show that sqrt((1-sin theta)/(1+sin theta)) = 1/2.

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