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PQR is an isosceles triangle whose equal...

PQR is an isosceles triangle whose equal sides PQ and PR are at right angles S and T are points on PQ such that `QS = 6 (SP) " and " QT = 2 (TP) " and if" angle PRS = theta , angle PRT = phi ` then

A

`sin 2 phi = 3//5`

B

`2 phi + theta = pi//4`

C

`sin 2 theta = 3//5`

D

` sin phi + cos phi = 4/sqrt10`

Text Solution

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The correct Answer is:
A, B, D
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Knowledge Check

  • The sides PQ and PR of right triangle PQR are such that PQ=5cm, PR=13cm . IF angleQ=90^@ then QR=

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    B
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    B
    `pi//3`
    C
    `pi//2`
    D
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