Math, asked by 9845073433, 1 year ago

solve this problem number 4 a

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Answered by Kundank
2
see pic for your answer
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9845073433: i can't understand second last line
9845073433: but thanks for your answer
9845073433: last line as well
Kundank: minus (-) common nikal liye...
Kundank: 2nd line me
9845073433: par aakhri step pe kya kiya
Kundank: cosa - Cosb se Minus nikal liye to Cosb - cos a hogya
Kundank: aur uper niche minus minus cancel ho gya
9845073433: aab samaj gaya
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