Find the value of sin30 + cos60/
1 - tan30 tan 45
Answers
Answered by
1
(3+√3)/2 is the answer of the following question
Urwa5:
Can u plz explain.
sin 30=1/2, cos 60=1/2, tan 30=1/√3, tan 45= 1. Just put the values and calculate the answer
follow me please
at last rationalise the answer
Rationalize by wht?
the denominator
Thnxxxxx
Answered by
1
Answer:√3 / √3 -1 or (3 + √3) / 2
Step-by-step explanation:
sin 30 = 1/2
cos 60 = 1/2
tan 30 = 1/√3
tan 45 = 1
sin30 + cos60 = 1/2 + 1/2 = 1
tan 30 * tan 45 = 1/√3 * 1 = 1/√3
1 - 1/√3 = √3 - 1 / √3
sin30 + cos60/
1 - tan30 tan 45 =
=> 1 / (√3 - 1 / √3)
=>√3 / √3 -1
on rationalizing you get
√3 / √3 - 1 *√3 + 1 / √3 + 1
=> √3(√3 + 1) / 3-1
=> √3² + √3 / 2
=> (3 + √3) / 2
But idk tht with we should rationalize
Your amswer is right till this point. But next wht?
the denominator you have to rationalize
so that you get the denominator in the form of a^2 - b^2
now you know with what you have to rationalize
root3 + 1 / root3 + 1
when you multiply this you are actually rationalizing it
can you mark as brainliest please anyways
Your answer is correct and thnx alsotttt
welcome
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