Math, asked by atasimaity, 3 months ago

please tell ŕrrrrrrrŕrdfbjfjjdjkfjk​

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Answers

Answered by 1234kirar
0

Answer:

pta nhi tumhare question ka

Answered by Aakrishisinha
2

Answer:

iii)False

iv)False

v)True

Step-by-step explanation:

iii)cos45∘=1/√2,cos90∘=0

Here, as θ increases from 45 to 90, value of cosθ decreases from 1/√2 to 0. Thus, given statement is not correct.

iv)sin30∘=½,cos30∘=√3/2

∴sinθ ≠cosθ

for all values of θ. 

v)From trigonometric ratios table, we can see that cotθ=cosθ/sinθ=1/0=undefined

Hence,true.

hope it helps you....

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