If 13sino = 5 , find the value of tano + 1/coso ??
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Answer:
sinA=5/13
draw a triangle with perpendicular as 5x and hypotenuse as 13x
Now base will be 12x
find value of tanA and secA
add those values and you will get the answer
sshatakshi19052007:
Thank you so much..!!
thanks but I think base will be 144x because when by Pythagoras theorem we'll find the base then squres will get cancel... b^2= (13x)^2 - (5x)^2, b^2 = 169x^2 - 25x^2, b^2= 144x^2 ,, b= √(144x^2) , then square and root would cancelled..right..?? then base will be , b=144x....please tell..
144 is the square of 12 we will take out square root of both the number and the variable because you can also write it as √144×√x^2
and also base can never be bigger than hypotenuse
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