(1-sin45°+sin30°)(1+cos45°+cos60°)=7/4
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Answered by
4
I got the answer 2
CORRECT MY ANSWER IF IT IS WRONG!!!
CORRECT MY ANSWER IF IT IS WRONG!!!
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kushagra5842:
wrong
correct answer is 7/4
i know the answer is 5/4
show the steps to slove it
√2 +1 is not equal to √2 right
Answered by
1
Hello here is your answer by Sujeet yaduvanshi ____________________________________
Question:-)(1-sin45°+sin30°)(1+cos45°+cos60°)=7/4
Solution:-)
LHS:-)(1-sin45°+sin30°)(1+cos45°+cos60°)
=(1-1/√2 +1/2)(1+1/√2+1/2)
=1(1+1/√2+1/2)-1/√2(1+1/√2+1/2)+1/2(1+1/√2+1/2)
=1+1/√2+1/2 -1/√2-1/√2+1/√2*1/√2*1/2+1/2*1/√2*1/2*1/4
Cancel 1/√2 and -1/√2
=7/4
that's all
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Question:-)(1-sin45°+sin30°)(1+cos45°+cos60°)=7/4
Solution:-)
LHS:-)(1-sin45°+sin30°)(1+cos45°+cos60°)
=(1-1/√2 +1/2)(1+1/√2+1/2)
=1(1+1/√2+1/2)-1/√2(1+1/√2+1/2)+1/2(1+1/√2+1/2)
=1+1/√2+1/2 -1/√2-1/√2+1/√2*1/√2*1/2+1/2*1/√2*1/2*1/4
Cancel 1/√2 and -1/√2
=7/4
that's all
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hey can u help me
I've solved the question and i got the answer which is 2
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