Grade 11Trigonometry
if (cos^2 x +1/(cos^2 x))(1+tan^2 y)(3+sin3 z)=4; then y can take values equal to
if (cos^2 x +1/(cos^2 x))(1+tan^2 y)(3+sin3 z)=4; then y can take values equal to
2 Answers
Saurabh Koranglekar
Dear student
more conditions are required to answer
more conditions are required to answer
Aryan Mudgal
Am>=gm
So
Cos^2 x +1/cos^2 x >=2
Now minimum value of cos^2 x + 1/cos^2 x will
Be 2
Also -1
-1+3
So minimum value of sin3z +3 is 2 now as
Whole multiplication is equal to 4
1+ tan^2 2y has to be = 1 so
Tan^2 2y =0
Tan 2y=0
So 2y= 0,180 ....
So y=0,90 ....
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