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Find the blanks. (i) If x=a cos^(3)thet...

Find the blanks.
(i) If `x=a cos^(3)theta,y=b sin^(3)theta` then `((x)/(a))^(2/3)+((y)/(b))^(2/3)=ul(P)`
(ii) if `x=a sec theta cos phi,y=b sec theta sin phi` and `z=c tan theta` then `(x^(2))/(a^(2))+(y^(2))/(b^(2))-(z^(2))/(c^(2))=ul(Q)`
(iii) If `cos A+cos^(2)A=1`,then `sin^(2)A+sin^(4)A=ul(R)`

A

`{:(P" "Q" "R),(1" "3" "1):}`

B

`{:(P" "Q" "R),(4" "1" "2):}`

C

`{:(P" "Q" "R),(2" "2" "1):}`

D

`{:(P" "Q" "R),(1" "1" "1):}`

Text Solution

Verified by Experts

The correct Answer is:
D
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