solve sin ^ 20 + sin^ 70 - tan ^ 45
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Answered by
16
sin²20+sin²70-tan45
=sin²20+cos²20-tan²45
=1-tan²45
=1-1=0
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=sin²20+cos²20-tan²45
=1-tan²45
=1-1=0
PLEASE MARK AS BRAINLIEST IF HELPFUL!!!
07161020:
what is wrong
you have sin^ 70 not 75
but thankuuuu
sorry
but the answer is same
i corrected it
and by the ur most welcome
okk
thanks
welcome
Answered by
8
Step-by-step explanation:
sin²20+sin²70-tan²45
sin²20+sin²(90-20)-tan²45 [by applying formula]
sin²20+cos²20-tan²45
1-tan²45 [value of tan45 is 1]
1-(1)²
1-1
0
I hope this will help you
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