Please Solve this Quickly.
Attachments:
Answers
Answered by
0
7 sin²ø + 3 cos²ø = 4
Now
7 sin²ø + 3 cos²ø = 4 (sin²ø + cos²ø)
7 sin²ø + 3 cos²ø = 4 sin²ø + 4cos²ø
7 sin²ø - 4sin²ø = 4 cos²ø - 3 cos²ø
3 sin²ø = cos²ø
sin²ø / cos²ø = 1/3
tan²ø = 1/3
tanø = 1/√3
Hence
tanø = 1/√3 = 30°
Hope you like it please mark as brainiest and please follow me.
ashish9762:
Please, Tell me How you multiply by sin^2 theta + cos^2 theta in LHS.
As LHS is 4 ok
then 4 = 4 × 1
then 4 = 4 × (sin²ø + cos²ø)
As we know that (sin²ø + cos²ø) = 1
Answered by
0
Hope it helps you.
Plz mark me as the brainliest.
Attachments:
Similar questions