sin 54 degree cosec (90 - theta) is equals to 1 find theta
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7
sin54.sec@=1
it's mean 54+@=90
@=90-54=36
it's mean 54+@=90
@=90-54=36
eshtakalal03:
I think you are wrong because complementary angle of cos is sin
sorry my mistake
can you explain me the 2 step please
Is that right??????
Answered by
23
sin54°cosec(90 - ø)= 1
sin54°secø=1
sin(90° - 36°)secø= 1
cos36°secø= 1
1/sec36°secø= 1
secø/sec36°= 1
secø= sec36°
ø=36°
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