tangerine=sin(gerine)/cos(gerine)
Calculate
3 tan 2 3 0 ∘ + csc 2 4 5 ∘ − tan 4 5 ∘ 9 cot 2 6 0 ∘ + sec 2 4 5 ∘ − 4 sin 9 0 ∘ .
The answer is 0.5.
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5 solutions
It's very easy
Lol I was writing it on a paper for calculating,and I mistakenly wrote “4tan45” instead of “tan45”so I got -1 as answer
Yah, friend did it the same way
By the way you didn't reply. I wrote simplify the altitude formula and then post a proof for both the formulas
By the way you didn't reply. I wrote simplify the altitude formula and then post a proof for both the formulas
on solving it gave answer 2
same like this
Very easy !! :p
Sorry, but your answer is wrong because 3+2-4=1 is in numerator
and 1+ 0.5-1=0.5 in denominator so the actual fraction is equal to 2
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(csc(45))^2=(2/sqrt(2))^2=2 not 0.5.
Yes, it is equal to 2. Not 0.5. @Mardokay Mosazghi
just use calculator
9cot²60 = 9x(1/tan60)² = 9x(1/√3)² =3 + sec²45 = (1/cos45)² = (√2)² =2 - 4sin90 = - 4x1 = - 4 => 9cot²60 + sec²45 - 4sin90 = 3+2-4 = 1 similarly, 3tan²30 + cosec²45 - tan45 = 3x(1/3)+2-1 = 2 => (9cot²60 + sec²45 - 4sin90)/ (3tan²30 + cosec²45 - tan45) = 1/2 = 0.5
it was easy
that was easy..
This a an easy problem; good for teaching people trig. I like the picture!
9 X 1/3 +2-4 divided by 1+2-1 =1/2
Half the question was covered up by a picture of a tengerine, so I didn't have much chance!
it was easy.
Through common trigonometric ratios, the numerator equates to 3 + 2 − 4 , and the denominator equates to 1 + 2 − 1 . Thus, the fraction obtained is 2 1 = 0 . 5